Steelers' Mitchell Trubisky says he's preparing to be starting QB, feels 'really comfortable' in new offense | CBS Sports Headlines Steelers' Mitchell Trubisky says he's preparing to be starting QB, feels 'really comfortable' in new offense Trubisky continues to receive the bulk of reps at QB ESN FeedsThis post was … Continue reading Steelers' Mitchell Trubisky says he's preparing to be starting QB, feels 'really comfortable' in new offense