I'd be more than happy to have Lieber on my team. He doesn't walk anybody which makes up for the lack of K's. He'll allow his share of HR's in Philly but he's always been a solid SP that has improved his control every year. His last 2 seasons in the NL he had ERA's of 3.80 and 3.70. Last season, coming off of TJ surgery, when most pitchers have worse control, he had better control. He'll be fine.
Of all the guys you listed I'd drop Kazmir or Westbrook and get Bush. Your top 6 with the exception of Maddux are solid so I don't think you need to worry about SP's too much. Maybe you can deal Maddux to somebody who's into the whole "He's magic man, he'll always get 15 wins" thing. He won't help fantasy teams much at all. A little WHIP help but other than that he'll probably hurt your team.
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