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After the season Bruce Arians put together as the Indianapolis Colts' interim head coach, it seems illogical to place him last on this list.
Arians clearly demonstrated fine head-coaching acumen in 2012, something many weren't sure he had. However, the presence of the ultra-talented Andrew Luck, a player with the poise and football intelligence of a veteran, made everything work in Indianapolis.
Arians' offense is predicated on a variety of routes that threaten a defense vertically, and Luck's strong and accurate arm led to an abundance of big plays. However, Indianapolis' offensive line was shoddy, allowing 41 sacks during the regular season.
In summation, the fact that the Colts went 11-5 with an average defense and a subpar offensive line was a testament to Luck's inherent ability more than anything else.
Still, Arians is a great offensive mind and has what it takes to manage a team.
But is he the right fit in Arizona?
First of all, there isn't a franchise quarterback on the roster, unless Arians believes he can resurrect the career of the oft-injured Kevin Kolb. Also, his system, loaded with long and developing routes, will come under fire behind the league's worst pass-blocking offensive line—the Cardinals allowed 54 sacks in 2011 and 58 in 2012.
Arians must locate and acquire a strong-armed signal-caller and add pieces to the offensive line if he stands any chance of having success in Arizona—either that or completely reconfigure his offensive system.