The West London side kept a second consecutive clean sheet against Burnley as the Clarets were unable to make a single attempt on Edouard Mendy's goal.
New formation made for flowing attacks
After some contested possession in the first 15 minutes, the visitors sat a lot deeper, inviting the Blues into their half.
Unbeknownst to Sean Dyche, dropping deep saw his side play straight into Tuchel's hands. The hosts spent the majority of the first half lurking on the edge of their opposition penalty area and in the 40th minute captain Azpilicueta smashed home Callum Hudson Odoi's lay off to make it 1-0. A sigh of relief for Chelsea fans.
The performance made it clear that Tuchel knew what he wanted from his players. They came out for the second half poised in the same way they were for the first.
The full-backs continued to squeeze Burnley's 11 tight into their final quarter, creating bags of space on the flanks. Alonso sealed the victory late on, as he wandered into the box and scored a fantastic volley.
This new formation seems to be the way forward under Tuchel, especially if the players see out the game like they did today, something that was a rarity under the final months of Lampard's time in charge.
Repeated defensive solidarity
Thiago Silva was described by fans on Twitter at the final whistle as a "Rolls Royce" defender, seen constantly in the right place at the right time for the Blues and stifling any signs of a Burnley attack.
After today's game, Tuchel becomes the first Chelsea manager to keep a clean sheet in each of his first two Premier League games in charge since Rafa Benitez in 2012.
Chelsea were positively disciplined today, picking up zero bookings, something they hadn't managed before this season.
Antonio Rudiger also looked increasingly comfortable as he started his third consecutive game this season. He was able to press higher up the field as Chelsea built in possession, and he even managed a shot on goal.
The Blues will look to use their promising new style to their advantage on Thursday, as they take on Jose Mourinho's Spurs away from home.