I'm not gonna say "f you Bill" since he was responsible for a very successful stretch of Colts football... even if the end of his tenure didn't finish too strong...
But, he clearly preferred a cover 2 defense, so of course he wouldn't like this pick. His "thoughts"' on this subject don't seem to be unbiased.
My personal thoughts on Chapman: I'm concerned about his ability to stay healthy. I'm concerned about his pass rush. But... he did anchor a top-ranked D-line in Alabama... played through a very serious injury (I don't know whether to think he's tough or just stupid). The scouting report on him, however, was not very glowing.
So he's got a lot of areas to improve... but what do you expect with a 5th-round choice. Hopefully he pans out.