Although Tuchel is more experienced than Xabi Alonso, it can't guarantee Bayern Munich to win the title of Bundesliga. Xabi Alonso has a great history as a player in many leagues, he must understand how to deal with the long season. As long as Leverkusen has no many injured players, Xabi Alonso is capable to lead Leverkusen to win the title of Bundesliga.
Tuchel is more experienced than Xabi Alonso but Xabi has been gaining more experience with his team and seasons. Xabi can be considered as a new version of Tuchel when Tuchel built up his coach career with Dortmund.
What Xabi Alonso and Leverkusen have been showing since the last season is very impressive and they actually are improving themselves a lot. Beating Bayern Munich in this season is harder than the last season because since the summer transfer, they got a world-class striker, Harry Kane. It is what Bayern Munich did not have last season after letting Robert Lewandowski moved to Barcelona.
I really want to see Xabi Alonso and Leverkusen win Bundesliga because the domination of Bayer Munich in the league is so boring.