Every coach has their base players. The players they trust on a regular bases and are usually the first names on the roster sheet. Miguel Herrera wasn't any different. Considering "El Piojo" came into Mexico's head coaching position in a time of crisis (nothing new for a Mexico coach), he needed to rely on guys he could trust even more than some other coaches.

Now that Mexico has let Herrera go, there will be a new coach leading El Tri. These five players might not find themselves on the starting XI on a regular basis.

Miguel Layun

Before Herrera took over for Mexico in November of 2013 for the World Cup playoff against New Zealand, Miguel Layun had only just made his national team debut earlier that summer on Mexico's "B" team for that years Gold Cup (that first team went to the Confederations Cup in Brazil that year). Layun played his club soccer for Herrera in Mexican giants Club America, playing the left back in Herrera's back five. Since Herrera took over Mexico Layun, when healthy, has been Herrera's main man on the left. He was having a good enough run with both club and country that he made the switch across the pond to Europe and helped Watford earn promotion to the EPL. 

Now that Herrera is gone, Layun’s spot on the left will not be a guarantee. When Herrera tried playing with a back four instead of his usual line of five, Layun struggled with finding his positioning defensively out wide and knowing when to help on the attack. It’s highly unlikely that whoever the new coach is that he will stick with a line of five. Is Layun just a player of a coaches system or is a capable of playing for any coach in most systems? Those questions will need to be answered.

There's no shortage of quality for Mexico on the left side of the defense on the field. Torres Nilo of Tigres has been a Mexican regular since 2009. Adrian Adrete has been a catalyst for Santos on their way to a championship in the spring and had a breakout Copa America. There’s also Miguel Ponce, an Olympic gold medalist and a Mexican fringe player for the last four years. 

Paul Aguilar

Another former player of Herrera's while at Club America, Aguilar was in and out of the Mexican picture until Herrera came in and made him a staple on the right side of Mexico’s five man defense. Like his former club teammate, Aguilar struggled when Herrera tried the four man defense in getting his defensive assignments in order and knowing when to attack.

Unlike Layun, the right side of the defense isn't as deep as the left side. Yet, they have a few youngsters like Van Rakin and Pizzaro on the verge of becoming Mexican regulars in the coming years. There’s also Tigres Jesus Duenas who’s having a career year with Tigres and has the ability to play on the right. Aguilar's spot will be under threat.

Diego Reyes

It's been a rough two years at the club level for young 22 year old Diego Reyes. After winning the Clausura championship in 2013 with America under Herrera, Reyes made the move with fellow Mexican Hector Herrera to Portuguese giants Porto. Unlike Herrera (player), Reyes has struggled to crack the starting XI and at times even the bench for Porto.

Though Herrera continued to call him over those two years, Diego's lack of game time became more and more evident as he hasn't developed at the level many Mexican fans had hoped after his breakout performance at the London games. Add to that he still lacks the body and is easily muscled by opposing forwards means he will need a big year out on loan for Real Sociedad.

Considering the backline for Mexico will most likely go back to a four man defense. This means instead of using three center backs they will go back to having two center backs.  Reyes will have some competition for a spot in Mexico's defense. The player most likely to challenge Reyes is his Olympic center back partner Hiram Mier. After recovering from injuries he's coming back into his best and returning to the level that made him a consistent Mexican call-up before his injuries.

Oribe Peralta

Oribe Peralta will forever be in the hearts of Mexican fans for his double against Brazil in the London finals to help El Tri pull off the upset on their way to the Gold. To go along with the brace, he was one of the few consistent players in an inconsistent qualification for Mexico during the 2014 World Cup run. This year though, he's struggled to match the level he produced in the last few years.

Peralta was another Herrera player, but at 31 and a terrible Gold Cup, Peralta might be on the brink of an exit. Peralta's competition will only get stiffer as the years continue. Chicharito and Vela are entering their prime. Raul Jimenez is entering his second season in Europe, Jesus Corona being the breakout star this summer for Mexico and Pulido getting his club career settled at Olympiacos in Greece, Peralta’s time with Mexico might be coming to an end.

Giovani Dos Santos

Giovani Dos Santos is a former U-17 World Cup champion who took the world by storm and gave Mexico a new hope for years to come. He was a Barcelona youth product who scored a hat-trick on his last game with the club. At one point he was seen as the new Ronaldinho. The older Dos Santos brother had the world and Mexico at his fingertips.

Two World Cups, three Gold Cup championships and an Olympic gold medal, the 26 year old has made one of the riskiest moves for a Mexican player by leaving Spanish club Villarreal for MLS club LA Galaxy. 

His bank account will be nice and he will be followed by the Mexican fans all over the U.S. and he will be a poster boy for the league. Herrera said he didn't see a problem with Dos Santos making the change to MLS but will the next Mexican coach see it the same way? 

Dos Santos has had a history of being on the injury list and at times struggles to find his best position, whether it's playing behind the first striker or an attacking midfielder. Will the new Mexican coach find a spot for him with forwards Vela, Chicharito, Pulido and Jimenez all playing their club ball in Europe?

In the midfield, Corona had a great year in Holland and an equally great summer for Mexico. Also consider the players in Mexico with the likes of Fabian, "Guti" Pena, and Jurgen Damm. Will the next coach see the situation through the same eyes as Herrera or see the move to the Galaxy as just a cash grab and a player who no longer has the passion to play at his highest level possible? This writer thinks we'll just have to wait and see.