What does Bob Howry have on Lou Piniella?

I'm out of town and was only able to watch part of one inning up to this point and it just happened to be the 6th inning. Bob Howry's inning. In fact, I was only able to watch 5 batter and all 5 reached base. His ERA is now above 5.5. He hasn't been any good for a very long time. Why is Lou giving this man innings when there are other alternatives? It makes no sense. All I know is that this can't continue if the Cubs want to have any success whether it's later this month or more importantly next month. Get rid of him right now.