Stop featuring Undisputed Elite, The Hardys, Lambert, Scorpio Sky, Britt Baker, anything ROH.
Pull back from signing ex-WWE guys. No signing Gargano, Cesaro, etc.
Pacing is one of the biggest problems in AEW. Set in concrete how long a feud is going to go (2 weeks, 4 weeks, 1 ppv cycle, etc.), come up with a story, and then space out the content you come up with week to week, as evenly as possible, and stick to it. No more on/off feuds taking months and months.
Get rid of the ranking system. That'd allow you to book anything, and you can change Dark/Elevation to purely developmental where people get proper 5-10 minute matches every week, not these completely worthless filler 2 minute squashes.
Get rid of these groups that hold back main event players. BCC, House of Black, etc. frankly even Cole would be a lot more tolerable. Malakai was better when he was solo, Danielson should be solo and in the title picture.
TNT title picture should be guys like Andrade, Ricky Starks, Darby, Christian, not whatever the fuck it is now.
Rent out training facility with dorms and hire a bunch of woman 18-25, get top trainers from Japan - train several times a week, feed into Dark/Elevation, actively work on what's not working.
Hire 2-3 top Joshi wrestlers: Maya Yukihi, Veny, TJPW's Miyu. Push for Stardom partnership: focusing on Giulia, Mayu, Utami getting on AEW programming
Delete Tony Khan's twitter. Talk to him about his drug dependency, send him to rehab.