Yeah, it really sounds like he got some outside advice. It's usually the parent(s) getting involved, right? They're still young after all. I wouldn't be surprised if sneaky MR had something to do with his departure. I think the timing of it was strange and SF was blindsided by it. That is the only thing I felt bitter about so I completely understand if SF is PO'd because he (Gebbia) basically took away a ton of reps from Andrew Bunch.
Now that TG is gone, I think Bunch is the best backup QB we've had since maybe Armstrong was a RFR in '13 behind Taylor Martinez. He has a good arm and deceptively quick, IMO. He may not get those big chunk of yards on the ground like Martinez but he could scoot for a 6-8 yarder to move the chains if needed.
I hope the weather holds up and we have a sizeable lead at halftime so Bunch can get a bunch of playing time