Keeper Help (Auction)

I get to keep 4 $100 salary

David Johnson $3 Keep
Carson Wentz $1 Keep
Adam Theilen $2 Keep

Now I am torn but leaning towards Alex Collins for $1 then go out and spend $94 and improve this roster

AJ Green $26
Alshon Jeffery $15
Evan Engram $1

What is the roster setup?

Qb rb rb wr wr flex te k def

I would keep engram…ravens still like Dixon so there’s a question for me on Their commitment to Collins.