Whakaotihia te rerenga e whai ake nei: I muri i te wa, ka whakakahore te kaiwhakahaere matua a Bobby Clarke ki te haina i tetahi kirimana hou me McCrimmon, ka kowhiri ki te whakawhiti ia ia. I tukuna ia ki te Calgary Flames i te Akuhata 27, 1987, hei utu mo te kowhiringa tuatoru o te 1988 NHL Entry Draft me te rauna tuatahi i te
Ko te 1989 Draft. I te 1987/88 Flames, i uru atu a McCrimmon ki a Al MacInnis, Paul Reinhart, Gary Suter me Ric Nattress ki te hanga i tetahi o nga kaitautoko o runga i te NHL. I eke ia ki te 42 nga tohu mo nga Flames, i toa i te Tohu NHL Plus-Minus me te +48 rangatira o te riiki, a i whakaingoatia he kapa tuarua All-Star. Hei taapiri, i purei ia i te Taakaro Whetu Katoa o te tau 1988.