take that late first round pick and try and get another 2nd and 3rd (if they are picking 31st they may need to throw in a 6th or 7th) - then taking two O-line man in the 2nd and 3rd rounds will allow for the usual scouting mistakes of getting one of them wrong..the Bills can then still pick up a DB and a wide out. After that pick up a free agent olineman and pray to the football gods that one of those non-drafted players who get added after the draft can actually contribute to the Oline