Been a huge STP fan for years, tremendous amounts of respect for Scott and his voice, but his time had come. He can no longer put out the goods live on a consistent basis, and the rest of the band is way too good to sit by idly while Scott screws them over.
As for Chester being hired, I really like it. The new song sounds like classic STP, and at times Chester even has sound similar to Scott's, but it is fresh and he can pull it off live. If STP was to release an album with songs like Out of Time I would absolutely love it. People need to back off on the criticism for STP for hiring Chester, they did what they want, they got rid of the frontman of their band and replaced him, and extremely bold move. How many of you originally thought DT wouldn't be good anymore when Portnoy left? How many expected Alice in Chains to return without Layne - even though the material they are putting out now is just as good if not better than the old stuff, IMO. STP is going in a new direction, like hundreds of huge bands have done before, at least give them a chance.