Carroll was a bit of a controversial pick among Flames fans in 2014; he was almost 20 at the time and the thought process was "Hey, why not just draft a young kid as a project?" Now just over a year later, Carroll has a professional contract in his back pocket and may have quieted his critics somewhat with his final WHL season.
Carroll's a unique property, in the sense that he's both (a) a late bloomer and (b) a product of the Arizona minor hockey system. Yep, Arizona. A 1994 birthday, Carroll would've been in his formative hockey-watching years right as the Coyotes quietly became good, which no doubt influenced his choice to play the game of ice hockey.