Looking at the #Raiders roster, tier of needs (factoring in pending FA): 

Priority: QB, RB, ILB, IDL, NT, WR
Tier 2: CB, SAF, WR Depth, EDGE
Tier 3: RT, G, SWR
Tier 4: LT, C, OL Depth
Little-No Need: TE, K, P, LS
#Raiders