Even though Cesc Fabregas is not coaching Como, which is owned by a rich man, it is not even right for Cesc Fabregas to be in a hurry to leave Como and join Bayer Leverkusen because he just started his coaching career, and Cesc Fabregas needs to stay at Como and gain more experience about coaching so that he can be able to perform well in any club he will coach next.
As much as I agree with you, you know at some point someone has to kickstart his or her career from somewhere and Bayern Leverkusen might be just one of those clubs that he can use to spice up his coaching curriculum vitae. Bayern Leverkusen is an upgrade to Como and this might further project his career to possible bigger clubs around Europe. I read a rumour that Ten Hang has been contacted by Bayern Leverkusen and I don't how true that is but sooner or later we will know who's where and whose not.
Erik ten Hag is already in contract with Bayer Leverkusen for two years with now few big names are already on sell list as well which is making things interesting for this club future which won their first title in decades and then ended on second spot as well. Cesc Fàbregas done good job at Como in his first season with this now most chances he is having no intention to leave this immediately because from here his career can turn big breakthrough for him while there was no any report Bayer Leverkusen have any intention to bring him here.
Now in this season things could be interesting because can Bayer Leverkusen keep themselves for staying into top ranks or both giants of Bundesliga will rule again because now Borussia Dortmund is also looking good after having Champions League and Bayern Munich could be more lethal after winning title.