When hiring a general manager, you do your evaluations, run your interviews, make a decision, and unless something jarringly bad happens in the first three years, you stick with him. That’s my general opinion of matters like this.
In 2012, the Indianapolis Colts chose Ryan Grigson as their GM, and that’s fine. They made a decision and in his first season he won Executive of the Year as the Colts went from 2-14 to 11-5 with Andrew Luck, TY Hilton, Coby Fleener, Dwayne Allen, and Vick Ballard added through the draft, and Vontae Davis addd in trade.