With the demotion of Tyler Wells to double-A to get rest/controlled work, it seems the Os intend to pick up a veteran starter before the deadline. Wells seemingly hit a bit of a wall and the same might happen with the other young starters. Reports are linking the Orioles to Mike Lorenzen. Probably a decent pickup of they can pull it off, but he is sort of having a career year and the prior 8 seasons pitched 100 innings or less. Not ideal given the state of the current rotation.
The Cardinals are selling and Montgomery would be a better fit. More durable, innings eater, and having a good season.