Maccagnan mum on whether he talked to O’Brien about Hackenberg

The Jets surprised many by making quarterback Christian Hackenberg a second-round draft pick and, in turn, the presumptive eventual starter. Hackenberg became attractive to NFL teams from the moment he showed as a true freshman at Penn State that he could run coach Bill O’Brien’s complex, pro-style offense. Of course, regression during 2014 and 2015…