To be honest, I do feel we could use a change, but on the other hand, I think Allegri is still the best tactician out there, I believe he deserves a final chance at CL next season with our key players intact and getting him players that would help him have tactical flexibility and not drop in performance in midfield, that means getting him key players like SMS and players that can help improve and be flexible like Can,Martial and still keeping the likes of Dybala,Sandro,Pjanic,Higgy,Cuads,Costa,Berna.Then getting useful players that can slowly become starters like Caldara,Spina and Pjaca.
With such a mercato, one last time at the CL, and if he still cant get it then perhaps is time to change.