Bill Callahan was hired by the Redskins after a brief stint with the Dallas Cowboys during this offseason. Scot McCloughan was also brought in as general manager of the Redskins and we can agree that McCloughan was the best pickup. Bill Callahan is definitely a second best.
Callahan redefined the Dallas Cowboys offensive line last year. The Cowboys offensive line helped DeMarco Murray lead the NFL in rushing in 2014. Not to mention the protection and time allowed for Tony Romo to make plays.
Last season, the Redskins had 58 sacks allowed which was the second most in the NFL.