Manage the clock better. He's been terrible at that this season.
QB is also his fault. Geno should've been back in the lineup the game that he was ready to come back. Fitzpatrick has shown that he's not any better and has lesser potential.
OL isn't really his fault. Hard to deal with injuries on the offensive line.
I don't understand anyone thinking about Geno Smith. He has consistently shown that he has, if it's possible, negative situational awareness. His potential is zero and won't be on the team and likely the NFL next season.
That said I don't think Bowles has shown much either. How does he consistently have too many men penalties in critical situations?