So what you're saying is they should blow it all up and start over again?
No, what i'm saying is that you spend your resources (money and cap space is a resource) on better things than Jacob Trouba.
There's no instant fix to go from shit to good (although this kind of goaltending heater is about as close as you can get). What you can do is make each move good.
If you're gonna bring in guys, try and make them moves with upside.
If you're gonna just bring in expensive cap dumps, at least get paid for it.
And if you make those better moves, all of a sudden you can become a cap team much quicker. Or if, for example, your young stars explode quicker than expected, you don't have a bunch of dead weight on the books holding you back.