We can’t just ignore minor league numbers. Anyone who has seen the movie Moneyball knows at this point that scouting can overestimate players’ true abilities and leave potentially useful players unnoticed. With that backdrop, Nate Karns‘ officially rookie season in 2015 is a very interesting case. We are talking about a pitcher who pitched to just a 5.08 ERA at Triple-A last season delivering a 3.67 ERA in 147 major league innings for the Tampa Bay Rays.
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Entering the season, Karns was going to compete with Alex Colome for the fifth starter job.