One plausible rationale for what has happened is (1) Columbus is running a strong defensive system, which helps the goalies and (2) Merzlikins had butterflies in his first North American starts, which he has since overcome. If that's the case, it seems likely that Torts will split starts/go with the hot hand and that both goalies will have some value. I'd guess that once Korpisalo returns, we'll get decent percentage numbers 2.50 GAA/.915 SV% with the starts split, more or less, between them.