Quite possible the team takes a step back next year because of a very inexperienced lineup.
Baertschi, Ferland, Reinhart and Ortio are all waiver eligible and will be looking for spots. Right behind them and ahead in some cases, there's Bennett, Poirier and Wotherspoon. Add in the Flames 2015 first rounder and any possible surprises like Jooris this year and next years lineup could be really, really young (not to mention Granlund, Jooris, Gaudreau and even Monahan are regulars).
So, in a lot of ways, the injuries to Stajan, Colborne and even Backlund are quite fortunate. Gives guys like Granlund and Jooris NHL experience while putting Monahan on an accelerated learning curve.