John Schneider had to do it. The Seattle Seahawks general manager was looking to revamp and rebuild an offense that was at times explosive but too often inefficient. To keep doing the same thing would likely result in the same kind of production and, ultimately, mediocrity.
Quarterback Geno Smith, for instance, is almost certainly going to make the Las Vegas Raiders more productive, but he will also steal defeat from the jaws of victory at times. He also asked to leave Seattle and was traded. How he does in his first season with the Raiders is probably going to get mixed reviews from 12s.