I believe there is merit in your speculation. I don't believe the NIL money has dried up. I believe Coach Freeze has focused it primarily toward high school recruits. However, you are absolutely correct that boosters want to see more.
Coach Freeze and his staff have worked their tails off to recruit and upgrade the talent on the roster. There has been little to no coaching in 2023. We almost upset UGA and UAT at home only to blow both games in the 4th quarter. We looked like a Sun Belt team at home against New Mexico State, outcoached in all phases of the game. Ditto for the bowl game against Maryland. We had uninspired performances in a winnable home game against Ole Miss, and we absolutely didn't show against LSU on the road.
I would like to see some coaching (in addition to the above-average recruiting) in 2024. If we don't see it, we're still stuck in mediocrity.