Obviously, they should have gone on a deeper run. Maybe Cassidy would have done better, but surely that isn't the point here. People are acting like Bruce Cassidy was the magic Factor X in attaining the Stanley Cup, and they're all butt-hurt that the Bruins let him go, as if we would won the Cup if only he had not been fired. That's hardly a given. Truth is, there's simply no way of knowing either way. Would Cassidy have won 2 rounds? Maybe. Imagine! Gee, how much joy that would have brought to these pages!! Dream big!
Around these parts, I'm told it's Cup or nuthin'. Cassidy is a very good coach and he deserves every success, but if he's the magic Factor X for Cup success, why didn't he deliver it in 2019? He had six seasons to use his magic Factor X coaching powers to bring a Cup to Boston – and didn't do it.
People are looking at this like there aren't any complex factors and motivations. The conditions changed, which makes speculation rather useless. The coach that Vegas hired was not the same coach that Boston fired. And if Cassidy had remained the coach of the Bruins, he wouldn't be the same coach that lifted the Stanley Cup. Getting fired from your job, kicked out of your band, rejected by a lover, spouse leaving, etc, all these things can be very motivating in wanting to succeed at your next "gig" to "show them.". That's just ONE factor. There are countless others. Now, maybe he would have eventually won a Cup in Boston, but again, that's pretty far from given, and I don't think it's even possible to construct an honest and cogent argument that it definitely would have come to pass.
Anyway, I believe Cassidy learned from his failures, and I believe Monty will learn from his. Let's give him a few more seasons and see what he can do (albeit with a squad that will probably be less of a contender for the next few years, barring any miraculous moves by Sweeney).
...And I hope Brad Marchand will be part of that team (just to bring it back the proper subject matter).