OK, looking at aggregate numbers, comparing IQ's between Fr and So seasons: Of the 39 players in my sample, discarded three because their schools ran combo defenses. Of the remining 36, 29 went up two points in defensive IQ and two in offensive IQ. A point, for example, is from C to C+, or C+ to B-. Of those 29, 15 started their Soph year at B-, B- and moved up to B+, B+; a few others started at C+, B- and moved up to B, B+ (1st number is the offensive IQ; 2nd the defensive IQ). You get the picture. Five moved up one point in offense or defense, and two points in the other set. Two moved up two points in one set and three in the other. Really not much variation. The three guys with the lowest GPA's (2.1, 2.1 and 2.3) were +2, +2. A guy with a 3.8 was +2, +1; his WE was a putrid 1. But another guy, GPA 3.4, with a WE in the 70's was a +2, +1. One of the guys that went +2, +3 had a GPA of 3.2 and a WE in the 40's. The other +2, +3 guy had a 2.7 GPA and a WE in the 70's. Figure maybe some of the +2, +1 or +1, +2, or +2,+3 might be due to coaches placing more or less points into the sets; no way of telling.
Of the 14 freshmen from the past season's Georgia DI group, 12 ended their year at B- on offense and the remaining two at B; seven ended at B- on defense, five at B, one at C+ and one at D+. The D+ rating may have reflected the time allotted by the coach--the player's offense and defense went up +3, +2, while others went up generally 5 or 6 points. Again, remarkable consistency in where they ended up, despite a little more variance in their IQ at the start of their freshman year. Again, no apparent connection between GPA and IQ; a guy with a 4.0 was +6, +3 and a guy with a 2.7 was +6, +6. If there is a connection between GPA and IQ, the numbers of this modest sample don't show it; same for the WE.
So, people--what now? Try to get everyone at a solid 2.8-3.0, to avoid bad semesters that threaten to sideline a player, or continue to follow WIS wisdom and build up the IQ of the players, even though there doesn't appear to be any point in raising IQ's beyond that needed to ensure eligibility? As noted, anyone that wants more detail, player by player, to do your own analysis, let me know via site mail. Want to get a dialogue going on this and a few other things that are conventional wisdom.