Mariota is being talked about as the top pick given his accuracy and play making ability, they are saying he could leap over Bridgewater.
Trading peterson (if you could get a good deal for him) would be an interesting scenario, I would say keep the coah till the end of the year (we need to make sure we snag a real coach not another instert) But if we can fleece a team I'd say do it.
If we end up with a t0p 4 pick we get one of
Mariota or Bridgewater (2 highly though of QB's)
Clowney or Barr (two highly thought of DE/OLB)
Either way we upgrade out team.
We should also be looking into trading the following players
Allen, Williams, Simpson (Colts and Pats need WR and he's been decent enough for a 3rish is pick) Stock up on picks and we could be back into playoff contention as early as next year.
Notice I say contention not a lock, with a good coach and some good picks we have enough to contend maybe not make but at least put up a fight.