Dynasty trade advice

I be receive Jimmy G and a third round pick
I give Gainwell a 2nd and 4th

Full ppr super flex

His team is all 1 year players or rookies. He will finish last I may win the league and not be able to draft a young QB. That is why I would make the trade.

My team
QBs
Rodgers, Brady, Heineken, menshew, ttaylor, d. Mills
Rbs
AK, A. Jones, jevonte, gainwell, C. Patterson,r freeman, T. Johnson
Wrs
T. hill, B. Cooks, R. Woods, M. Thomas, M. Hard man, H. Renfrow, K. Osborn, T. Marshal, Amari Rodgers
TEs
L. Thomas, Nijoku