Drop and pick up advice

so i drafted rb rhamondre stevenson but i see two rbs are available they are ken walker from ne and henderson from the rams should i keep stevenson or grab one of the other two my thoughts are walker but…

Looks like you can go from the RB2 in NE to the RB1 in LA if you want to swap Stevenson for Henderson.

pick up C samual drop gainwell what do you think