Alex Smith played quite well for the San Francisco 49ers before missing some time with an injury. While he recovered, Smith lost his job to newcomer Colin Kaepernick. Blues goaltender Jaroslav Halak can relate. Halak hasn’t done anything wrong, per se. But he injured a groin muscle in early February and had to come out of the lineup. With alternate goaltender Brian Elliott out of whack, the door opened for Jake Allen.