I'd go RB, RB, WR, RB because if you wait until the 39th pick (4th round) to get a WR, you will be VERY weak at that position. You'll already have two very strong RBs and with the 22nd pick will be able to pick up a Top10 receiver. You don't want to completely decimate yourself at that position, so it would behoove you to go RB, RB, WR, RB, even with the flex position. (With the 39th pick you'll STILL be able to pick up a very solid, 2nd-tier RB). Good luck with your decision.
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