Sit/ Start and add/drop?

Footclan I need some help. Had Montgomery as my RB2 and he’s probably not playing. I have Kareem Hunt and Zack Moss as my next best options. Any suggestions?

In a different league I grabbed Kendrick Bourne to go in my 2nd flex spot but Paris Campbell just showed up on the wire. Should I grab Campbell and just ditch Bourne who I think will fade when Deebo and Aiyuken return healthy? Thanks for your help