If I were the Krafts, I'd be furious, wouldn't you? We get hung up, understandably of course, on Bill's past (n.b.) successes, and so I am sure do the Krafts, but to see an asset so valuable in so many ways run into the ground by a man who seems to resist, obscure, and reject any responsibility for the fall of the team, and who insists on being insultingly dismissive of any allusion to the facts of his failure, must drive the Krafts up a wall, or - alas - an embarrassingly priapic lighthouse. There is a miasmal fug of nonsense and emotion surrounding this issue. Bill is an employee. Employees, when they don't do their jobs, get fired. It happens every day. It's as common as dirt and as common as common sense.
(I apologize for "miasmal fug." After 35 years of teaching, I am an insufferable, schoolmarmish pedant whose social skills have evolved or devolved bossing children around. So I get the floccinaucinihilipilification. * I wish I could say I'll do better going forward. Maybe I am much like Bill in a way. Hmmm....)
* I put this word, which is the the longest general useage word in English, and which means "considering as being worthless" on a spelling test back in the 70's. The kids were so taken with it, that, even though it was lightly-weighted as an extra credit item, was correctly spelled by nearly every student, even those who got words like "relief" and "rhythm" wrong. I think that gives an insight into how to motivate adolescents: they just love weird ****. I applied this insight over many subsequent years of teaching.