If Tennessee uses NFHS rules, which it does, it is not illegal. Don't expect it in college, under NCAA rules the A-11 offense wouldn't be authorized.
Interesting quote,
"It was unethical for them to use a loophole in the rules to run this offense," said Mike Webb, the supervisor of football officials for the West Virginia Secondary Schools Activities Commission who is on the NFHS football rules committee. "This takes away the deception."
Actually, they used the rule to increase deception. I do have a question for Mr. Webb, "If you found a loophole in the rules that you used to your advantage, would it be unethical?" It would have been more honest to say, "We don't like A-11, so we are changing the rules to make it illegal."
The issue I have with the offense is that it bends the rules to an almost breaking extent. Having 7 or 8 eligible receivers with only 5-7 DB's max is most certainly, questionable to say the least.
There is no possible was to have 7 or 8 eligible receivers. Even with the A11 there MUST be 7 on the line of scrimmage at the snap. Of these 7, only 2 will be eligible receivers.
The scheme offers the appearance of having all 11 players in the field eligible to catch the ball, and any six of the eleven players can interchangeably become eligible on any given play. The offense has sparked great debate within the football coaching community.
the A11 is terrible and there is no reason anyone should use it.
Wrong
From Wikipedia
And, a diagrammed version of the A-11
It is impossible to have 7 or 8 at the snap....you MUST have 7 on the line of scrimmage. Of these 7 ONLY the widest guy on each side of the line at the snap in eligible. The others are covered up and ineligible receivers.
Every guy is eligible to go out for a pass, however, there can only be 6 men that do so. The offense takes advantage of a loophole in the punting rules.
I have designed one of the goofiest offenses anyone would ever see (if I can actually implement it somewhere this year), yet I think the A-11 was an abomination.
Rule changes are made to preserve the essence of the game. Basketball has a shot clock so teams can't get a small lead and then sit on it for three quarters. They also have lane violations so no one with vastly superior size can just stand under the basket and dominate, and there's goaltending on the other end.
Forget "deception". I don't know that I consider myself an expert in the option, but it's easily my strong suit. The idea of taking a single loophole in the rulebook, exploiting it to base an entire offense around, and then complaining about the loophole being closed is both pathetic and laughable.