First off, I would have gone one team at a time rather than go with 5. See what works and what doesn't. Chances are, you made the same sort of mistakes 4 times over and have to scramble to fix 4 teams.
Secondly, open leagues are notorious for having owners who abuse the system and enter the same, cookie-cutter teams ad nauseum. They're impossible to compete with when you're trying to find your way.
Thirdly, there's no bigger jerkoff around here than kahuna, so you have an expert opinion on his topic.