The discussion to lower the number of classes for football is so they don't have to add any for other sports bickering about only having 3 who want to move up to 4 (Softball, basketball, baseball... etc..). So if they can get it down to 5 they can point to the other sports and say they're addressing the inequality.
Doing separate classifications by sport is dumb though. Red Bank (798 Students) plays 3A Football (Schools up 820 is or so), 2A Basketball/Baseball/Softball (Schools up to 1000 or so), but in track and cross country they are classified as a "Large School" (Up to 2700+).
Most states have blanket classifications... if you have this many kids you are in this class for all sports. In that case, i think 4 blanket classes would be ideal for the state.
A - 0 to 323 Students
AA - 324 to 706
AAA - 707 to 1150
AAAA - 1151 to 2700
In sports like Soccer, Tennis, Golf, Cross Country you can still combine A and AA into one class as needed as most are right now.