Inbox: Lack of rotation depth a concern?

Stroman ruled out for opener Given the upgrades in depth for all positions, what is the one area where you can see problems arising if there are multiple injuries this season?

--@glynfoulkes

The starting rotation. The Blue Jays are in a better spot than a year ago when Mat Latos, Casey Lawrence and Cesar Valdez were among the depth pieces, but the rotation could still be an issue if more than one arm goes down early. Ryan Borucki and Thomas Pannone offer promise, but both require more time in the Minors and would be better off not debuting until at least midway through the season.

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Outside of right-hander Joe Biagini, Taylor Guerrieri and Chris Rowley are among the only…