With the suspension and then Pittsburgh's early elimination from the playoffs, Cooke had a considerable amount of free time. He spent much of the time with Penguins head coach Dan Bylsma reviewing each of his hits to learn how to change his game to hit within the rules. Cooke said, "The way I played before was to get the biggest hit possible every time no matter what," and that now in "certain situations, I just approach differently. I try to get the puck more than I did before." Well into the 2011–12 season, teammate Craig Adams said of Cooke's play, "I've noticed over the last month or so, he's been feeling more comfortable being physical again, obviously, within the rules. That was a big part of his game." At season's end, he had scored a career-high 19 goals and posted only 44 penalty minutes, his lowest career total in a full NHL season.