One Possible(Very Unlikely) Situation..

This is just pure speculation trying to come up with an explanation for all of the crazy things that are happening with Tolbert and BG..

Tolbert gets the job after the NFL season as reported by many sites and Miles didn't want this news to get out. He knew that Tolbert couldn't contribute to the recruiting efforts until after the season which might be too late. He had plans to hire BG as the wide receivers coach/ passing game coordinator so he would have a receivers coach for the bowl game and a recruiter for this big class. Really the deal with BG is that after Crowton is fired after the bowl game BG is "promoted" to OC and Tolbert joins the staff as a wide receivers coach.

This speculation is founded under two pretty obvious fact. First, no team wants to install a totally new offense in the three weeks before the bowl game. BG would install his "Florida" spread offense if he were named OC before the bowl game. So they give BG a wink wink deal as wide receivers coach for the bowl game but OC next year. Second, Miles knows he needs a recruiter in this class as he sees Lache slipping away and Davis and Hunter wavering. So he gets BG to come to LSU as WR coach until Tolbert can come.

Explanations this theory offers..
It shows why BG was hired so quickly after Tolbert "backed out". The talks were already in place for this to happen..
It shows why BG made the "lateral" move from Florida to LSU

IMO This would put together one of the best offensive staffs in college football and would put the ball into our playmakers hands with a wide open offense that could score in bunches. This is very unlikely and possibly me just hoping/dreaming but with everything that has happened these past couple days.. why not?