How the hell would any team not know that about someone they were considering drafting that high? We hear all the time how teams speak to coaches, family members, friends, grade school teachers. I would think that Carriker's work ethic and acceptance of coaching would be one thing that wouldn't surpise them...
take it in conjunction with what they said about the guy they had last year and you can see why its a revelation to them. unfortunately your predecessors affect the way you are perceived. good or bad.