We've traded 3 strong or at least integral pitchers since the end of last season (Peralta, Myers, Mears) and got unproven guys in return. On top of that, some of who we were counting on are injured (Priester, Rob Z., Koenig, & Yoho). The idea of trading from our pitching depth, especially right now, seems highly misguided. Heck, Henderson's been nothing but good in his limited MLB time. He's the sort of guy this team's been good at finding, and is exactly the type you don't look to find reasons to trade away.