how valuable is Moncrief?

The trade proposal my buddy sent me seems pretty solid but I'm undefeated at the moment and don't necessarily "need" to trade anyone.
OFFER:
Matt Ryan/Doug Martin FOR Eli/Moncrief.

CURRENT TEAM:
QB: Rivers and Eli
RB: Foster, Gore, (Yeldon, Alf. Morris, Abdullah)
WR: Julio, Fitzgerald,Moncrief, (Dez, Travis Benjamin, Allen Hurns )
TE: Eifert

I've gotten some mixed reviews from a few dudes that aren't in my league. I feel like I could use some solid RB depth for later in the season but I really like Moncrief's game. I'm fearful, though that if Luck has any kind of setback his numbers would likely drop tremendously once again.
Thanks in advance.