Welcome to the league. We were very competitive 5-10 seasons ago, but at this point we're mostly top-heavy with our best teams promoting up to DIII and DII for some now. There are a couple of managers that are active on the boards, but don't be surprised to see weeks of silence in the middle of the season.
On our side, it's mostly me, Walnut Streets and Flying Marsupials. After not promoting, I'm trying to rebuild a little bit around my core, and Walnut did the same last year. I think Marsupials are in year 2-3 of a rebuild, maybe ready to compete in what looks to be a little bit of a down year. We have new teams California Quakes (brand new) and Trainers (relegated from a different D.IV) so the top should probably stay the same. Boise St. and China Bowls are the contenders for the last playoff spot.
On your side, CC Mavs was the clear class of the conference. Philly Fish, St. Pauls and Spearmint Rhinos have done well, but they've also struggled inter-conference. Don't sleep on Front of Armament. There's some good players on that team, too.