The idea that the Wing-T offense is not effective because no 4A or 5A team has won the state championship running the Wing-T is ridiculous and flawed logic in my opinion. First off it takes more than an offensive system in order to win a state championship, there is no almightly offense that if adapted will lead a team to a state championship, the offense is just one part. Now there are only a certain number of teams running the Wing-T offense in this state period, of those teams how many are capable of winning a state championship no matter what offense they chose to run? The pool of teams that even have the resources capable to win the state championship are small to begin with, even small in that group are teams running the Wing-T. So the chances of a team winning the state championship that runs the Wing-T is small no matter what because of how few teams run the Wing-T to begin with. Plus when you look outside of this state the no championships argument goes out the table, Coach Jim Dorsey at McEachern High School is one the most successful coaches in the the state of GA, Coach Jeff Herron at Camden County High School also in GA has destroyed records running the Wing-T offense, Coach Gordon Wood at formerly at Helix High school in CA ran the Wing-t, both Reggie Bush(yes the New Orleans Saints Reggie Bush) and Alex Smith(yes the SF 49ers Alex Smith) played in a Wing-T offense. Bellevue High school in Washington which is the school that ended De La Salle's 151 game winning streak, guess what offense they run? Butch Goncharoff the Coach that installed the offense at Bellevue is 81-7, and has won 5 of 6 state championships.
Second its my belief that there is no modern offense that precludes a team from winning, there are offenses that better suit teams, but to take the next step in saying that you can`t win if you run a certain offense is false. No you probably should`t be running a spread offense if you don`t have QB capable of making plays, and WR's that can catch, and you probably shouldn`t be running the I-Formation with tiny linemen and a RB that should be playing WR. If you have the talent and your players fit the scheme, the style of offense is not going to preclude you from winning. Now people often like to say that teams run the Wing-T to hide their weaknesses in areas, while that may be true for some teams that is not the only way to look at it. You can run the Wing-T to maximize your players strenghts, if you have multiple good RB's, athletic linemen, and a smart QB you can run through teams at will.
I think one the major things people don`t realize is that there are different versions of the Wing-T floating around. People see an offense with wing backs packed in close to the line, 1 WR, where the play always goes where the guards go and think that is what the Wing-T offense is all about. That style of Wing-T is one of a few different styles, Coach Aydelott(formerly of Hillsboro, now at Riverdale) runs one style, Coach Scott Meadows(formerly of Alcoa, Jefferson County, now at William Blount) ran another before switching offenses this past year. Seeing how so few teams run the Wing-T and I currently live in east tennessee I`ve only see Coach Aydelott's style from afar. I`ve seen quite a bit of Coach Meadows style of offense(what people like to call the modified Wing-T) when he was at Alcoa and Jefferson County. Any assumptions that may exist about the Wing-T are debunked with the modified Wing-T, if you exclusively follow the guards you are likely to run yourself away from the ball, you are as likely to see multiple WR formations as you are 1 WR sets, high powered/high scoring offenses can be obtained running the wing-t(one of major knocks I`ve heard is that the wing-t is a ball control low scoring offense that is doomed if it doesn`t play with the lead). What that modified Wing-T Meadows has beaten Maryville, Dobyns-Bennett, Morristown West, Oak Ridge, Ooltewah, all very successful 4A and 5A teams.
The bottom line in all of this is that a system can only take a team so far, there are a lot of other things involved in the success or failure of a team.