You can have gems of character growth when Devon understands that he may never return to the clinic. He is going to rob a bank vault with millions in worth. It is reasonable that he cannot go back to his ordinary life afterwards. It is deeper than somebody to fill in for him in the clinic for a couple of days. When you start stealing in millions and causing reputation damage that may even be more expensive to a bank - public knowledge of that run may collapse the bank. You have to take into account skipping town for good. If Devon comes then there is something in this run that is worth the risk, either greed, personal ambition, or a deep desire to leave that was bounded for a long time by his moral obligation. That said I am happy you resolved that issue.