Personally, I would have signed them both since we do play in the AL with the DH.
Pena's prediliction for being a whiff king is easy to fix, just fine him $50K for every K. :)
Seriously, he just needs to cut down on his swing a bit, hit the ball where it's pitched and
stop trying to hit homeruns. Just hit the ball. The homeruns will take care of themselves.
What also really works at any level of play ... If you consistently whiff twice or more in one game and you do not get any hits or drive in any runs in that game, you collect splinters for the next game. You'd be surprised how not playing focuses the mind on putting the ball in play more.
I like Kotchman because he is a disciplined, consistent hitter that his hard to pitch around. Hitting
in the 6 hole he really helps your 4 and 5 hitters see better pitches to hit, because he is not an easy out. He plays good defense too. So depending on who is starting pitchers or how the opposition pitches it relief, having both of them gives your team a plus advantage in just about every situation I can think of in any game.
The show game is about how you do what to whom. If you can FORCE the other guys to play your game and not have them do that to you, you can win extra games ... and it does not take winning much more than 10 to 15 extra games to put you in the playoff if you are just an average or slightly better than team.