Sign Jackson, Baldwin, or Jeffery?

All three WR are available in waivers in my 14-team Std league (no Flex position). I already have Diggs & E.Sanders as starters and want to build up some more WR depth. Ginn, C.Davis, and Enunwa are my bench WRs.

Trying to figure out who has the most upside through the season. I am leaning Jefferey even though he’s currently injured with Wentz coming back now, Seatle struggling, and not sure Jackson can keep up production all season long. Thoughts?

Thanks for the input!