Individual shot-based metrics are generally predictable and not subject to sudden, radical changes. Steen is one of the rare exceptions to that rule.
Steen had solid shot-based metrics for most of his NHL career. From 2010-11 through 2014-15, the Blues outshot their opponents 4,256-3,345 with Steen on the ice. That's a shot attempts percentage (SAT%) of 55.99, compared to 51.2 percent without him.
But in the past two seasons, the Blues were outshot 1,792-1,716 at 5-on-5 with Steen on the ice. That's a 48.92 SAT%, down from 51.3 percent when he wasn't on the ice.