I like what you're growing in the raised bed! Good variety!
Starting over? I'd really consider direct-seeding, the seedling won't be disturbed while it's getting established...no transplant shock. Look for a hybrid with a decent disease package. You've still got plenty of time. But, don't bank on 100% solving the problem with new plants...a good hybrid, though, will help. Or, if you want to give it another chance with OP maybe try a 50/50 mix of OP and hybrid. Just some thoughts.
