Tuchel will improve the attacking approach in the second leg. IMO
However, the players must push themselves physically and mentally to achieve a better result.
The defenders should avoid wasting time passing the ball back and forth and instead focus on passing directly to the wingers.
If Tuchel starts De Ligt and Eric Dier together in defense, Bayern's defense will be more stable.
Apart from that, currently Lazio even looks weak in Serie A. Because they also just lost to Fiorentina. And I think this could provide a bigger opportunity in the second leg that Bayern as the host will undoubtedly be able to make Lazio lose. H.Kane and friends will definitely be able to correct the mistakes they made in the first leg and replace them with the victory they will get in the second leg.
The performance of the two teams is actually quite different. Bayern just needs to improve their accuracy when making attacks. Because actually Lazio's defense is not that strong. Even this season in Serie A, Lazio cannot be said to be a solid team. Because it's even difficult to get close to the top 4 rankings. Last season Lazio did get good results at the end of the season. But this season Lazio got off to a bad start along with Napoli.