When I saw that little tidbit flash across my Twitter feed I was certainly surprised, after all Danny Duffy had just gotten done turning in six quality innings against a potent Tigers lineup. While Duffy has certainly struggled to a 4.85 ERA and his sometimes sketchy command has led to a propensity to run up his pitch counts quickly, he's also shown flashes of the type of dominance people expect to see more of in the future - like striking out more than a batter per inning during his last four outings.
In a rotation that ranks second to last in all of Major League Baseball with a 5.06 ERA (The Cubs are the worst at 5.23), Duffy would seem to be the least of the teams concerns.