I guess I'm in the minority. He's my CI in a 12 team league and I'm not ready to dump him yet. He is in a minor slump, but it's not all that bad. Hitting in the middle of the Detroit lineup is a great spot to be, and I, for one, am putting my faith in the veteran to put together a solid season.
If he's not hitting my mid June or so, then it's time to consider a change. Unless you're in a shallow league, which I'm not.