I am looking at the Bills roster, and there is a ton of holes. The draft may be able to fill three of those, but that may even be pushing it. We all know this past year how many injuries we had just in terms of our top picks. With FA drying up, Bills need to start picking what positions they want to fill in FA and what positions they want to leave for the draft.
Positions with best FA still available:
Safety: I think the Bills should really completely close this hole before the draft. There are some really good players here (McDougald, McDonald, Webb, Quddus, Byrd).
LB: There are also some players that could come in and start right away for Bills left (Minter, Z.Brown). A couple guys could be a nice rotational player (Riley, Hodges, Spence, Moore).
Filling these two positions would leave TE, CB, WR and RT in the draft.