Who to drop to activate 2 players

[flybutts1]

Mike Aviles and Michael Saunders both just got called up. my outfield right now is johnny Damon, franklin Gutierrez, nolan reimold, bj upton, and luke scott. out of reimold and scott, which of the two strugglers do you think has the best chance to turn it around?

and for Avilles, i can either drop brandon wood and move tejada to 3b, or drop travis hafner at dh but i think he is starting to turn it around finally over the last few days. i'm not going to drop pedroia tejada or reid breignac for aviles.

and this is a 10 team AL only roto league

[flybutts1]

this is also a keeper league. just straight keep 8 players from the roster.