Hickey has 18 years of professional NFL evaluation experience behind him. He hasn't rushed to a decision. He and his team have probably spent hours evaluating Billy Turner and said, yes, this is a player we want to invest a 3rd round Draft pick in. Not wishing to sound too derogatory, you have probably seen a few videoclips from North Dakota State Bisons and the Senior Bowl practice and determined that he's a turnstile - ie he's a bust.
OK, you correctly flag some concerns but please be open to the possibility that you are wrong. He's pretty raw but when I see a former Super Bowl winning O-line Coach, Howard Mudd getting enthusiastic about Billy Turner in the video called "Driven", I'm more interested.
I don't have a problem with Turner being a development prospect who may take a little longer to come good. He and Ja'Wuan James fit the ZBS that Joe wants to fully implement. We have wasted 2 years because of Jeff Ireland's love of slow lumbering cornfed players like John Jerry and Bryant McKinnie who didn't fit the system. Let's try to develop some through the Draft and a better coach in John Benton.