Drop Mayberry for Gamel or C Davis?

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H2H Keeper Pts League 1B=1, 2B=2, 3B=3, HR=4, SB=2, R/RBI=1.5, BB=1, K=-0.5

I'm holding on to John Mayberry (picked last round) because I will be able to keep him for a 21st round pick next year. Any FA pickups will cost a 13th round.

Will Gamel or even Davis be worth it for me? I'm trying to get someone that can possibly make an impact this year/be a good investment for the future.

C: R Hernandez
1B: Teixeira
2B: Kipnis
3B: Sandoval
SS: Tulo
OF: McCutchen
OF: Bruce
OF: A Gordon
UTIL: C Hart
UTIL: M Joyce
BEnch: Moustakas, Boesch, J Montero (soon to be C), John Mayberry

Others on FA: (Any pickup would cost 13th round pick if kept)
Luke Scott
Jon Jay
Matt Carpenter

Will I use Gamel/Davis this year? Will they outplay a 13th round pick next year? Keep Mayberry and hope for a great keeper next year?

Thanks Leave a link

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I drafted Mayberry late too. I'm sticking it out. It's too early to give up just yet.