Lapolice is a supposed offensive guru.
As a head coach, in parts of 4 seasons, he's presided over the worst or 2nd worst offense in every season in terms of PF and yards per game. The 2011 team was slightly over .500 and made the Grey Cup. Other than that his teams are winning less than 30%.
He's a terrible head coach. We can debate his work as an OC, but there's no disputing he's a historically awful head coach. He's in the conversation with the Tim Burke's, PaoPao's, Reinebold's etc. Him and Jim Daley might be the only coaches this bad to get more than one job.