1. Struggling Divisions - The Intercontinental, United States, WWE Tag Team, and World Tag Team championships are struggling. They have enough people to warrant the titles, but they aren't using them properly. For instance, though he's annoying, Snitsky isn't being used at all right now, while he could be paired up with someone and be thrown into the tag team division on Raw. Knox, Burke, Benjamin, etc could be someone competing for the US title, since Matt Hardy has nobody to feud with. If you can't get the midcard divisions working on the A and B show, you have no ability to make a midcard on the C show.
2. Cruiserweight - This only works if you have a large number (not 3 or 4 people) that have NOTHING to do because the midcard and tag team divisions are so overpacked with talent that they can't fit. You can't have a successful Cruiserweight division if you are struggling with other titles, unless you just want to have MORE crappy divisions.
3. Why the ECW title sucks - Poor feuds with a lack of talent. Simple as that. Kane would be a decent ECW champion if he wasn't being forced to make it look like Chavo is a legitimate contender. Morrison was starting to make it look like the title mattered, but when he was suspended, he passed it onto Punk, who was stuck in go-nowhere feuds with the likes of Big Daddy V and the Miz (before he was good like he is now). Then he loses to Chavo, who enters the Royal Rumble and everything, making it seem like its a midcard title again as opposed to when RVD and Big Show were holding it. The ECW title needs two main things to keep it afloat: a champion that can feud successfully with a lot of people and look like a legitimate title holder, and challengers that look like they could beat him. Booking him against midcarders like Benjamin who can't reach that next level isn't going to work.
4. Why ECW is holding back the WWE - If you were to move all the talent from ECW to Smackdown and Raw, it would help out a ton. Your jobbers (Dreamer, Delaney, Richards, Nunzio) could be balanced out 50/50. The likes of the midcarders (Benjamin, Burke, Miz, Knox, Kofi, Bourne, Chavo) can be thrown into the tag team and IC/US contention. The main event talent (Kane, Morrison, Punk) can help get rid of the tiresome feuds for the WWE and WHC belts so we don't see HHH/Orton/Cena and Edge/Taker/Tista for 2 years straight.
WWE has no option for a midcard title on ECW until they fix the ECW title, the IC title, the US title, and both the tag team titles, which can't be done unless they had extra talent which would come from ECW, making it so ECW doesn't even exist. The only way to get around that problem is to hire loads of extra guys from Developmental to fill in the ranks, but they can't just be jobbers as we have more than enough of those already.