Believe me, Todd Boehly is one of the worst chairmans Chelsea has ever had.

I really miss Abramovich in that seat. Boehly just doesn't know much about football, it is obvious. Spending billions of euros for transfers but still not even being able to finish the Premier League in top four, sacking Pochettino at the end of his first season already despite the huge improvement in results recently...
I hope Chelsea gets Xavi at least. Xavi is one of the decents choices for the development of young players. We all know how much he cared about Yamal for example. Chelsea has many young players in the squad now so.

It can be said like that because since Chelsea has been under his auspices, Chelsea has experienced a bad season even though they spent a lot of money to recruit young players, but in fact they have not been able to lift Chelsea to be in the top position and it is difficult to compete with other top clubs and even decide Fired coach Pochettino when he was starting to get better, so it is true as you said that Todd Boehly is a bad chairman compared to the previous chairman.
Yes, Xavi is a suitable coach to replace Pochettino, he is a young coach who has given Barca good results and has won domestic titles, and Xavi has been fired by Barca so Chelsea can hire this coach for next season and Xavi can also buy the players they need. it would be different if he was at Barcelona which had difficulty buying the players it needed.