All we need is the accurate dart-throwing QB who can run some and otherwise extend the plays when the initial stuff called isn't there. If we have that, then
1). Cierre et al have all the "surprise" that they need, and our RB situation is plenty good enough all the way downfield to the near goal line. Kelly will have to come up with something new there [maybe Hendrix, Mahone, or some "big load" gimmick --- we certainly have the line and the TEs to do it].
2). the accurate dart-thrower makes any tough sure-handed and smart receiver extremely productive. Our guys aren't Wes Welker but they're plenty good. If Davonte's smart, tough, and sure-handed, he'll shine as one of them.
3). the play-extending QB then explodes the defense and lets the game-changers and speed merchants occasionally bust long ones. Neal plays to that threat, but we have several guys who do [including Eifert, and I'll bet Koyack].
The bottomline here for me is that our roster is loaded with all the flashy talent that anyone could reasonably want for a Kelly offense. We need to fix QB [and not even to super-elite level] and all the other potentials are lying in waiting.