Dynasty RB Question

After this weekend I’m thinking of dropping Jeremy McNichols for Rex Burkhead…thoughts on this move w/ roster as constructed below? I like McNichols long-term potential, but I have a plethora of rookie backs who most likely won’t contribute this season, and feel Burkhead could be a nice plug and play piece from week to week. Let me know your thoughts on this move or anyone else that you think could potentially be dropped for sexy Rex-y

QB: Luck
RB: David Johnson, Fournette, Gio B, Abdullah, D Washington, Kamara, Conner, McNichols, D Henderson, Dixon (IR)
WR: Cooper, Hopkins, Snead, Crowder, John Brown, Corey Coleman, Taywan Taylor, Chris Godwin
TE: Gronk, Henry

Bumping because I’m lonely…any thoughts?