On3 has an interesting tool that looks at which teams improved their overall talent level from the transfer portal. I still think they're favoring quantity over quality too much. Look at Ohio State or Georgia. They obviously improved their team during the portal window. Most of their losses were guys buried in the depth chart.
"On3's Team Transfer Portal Index utilizes the On3 (P)erformance score to measure a team’s production during the transfer process, compared relative against its roster and not a comparison against other schools. This proprietary algorithm determines if a school has improved its overall team talent, stayed the same, or declined in talent during the transfer window."
Here's the "index scores" by conference:
ACC:
1. Louisville - 65
2. Florida State - 50
3. NC State - 36
4. Syracuse - 32
5. California - 25
6. Miami FL - 20
7. Virginia Tech - 14
8. North Carolina - 7
9. Virginia - 6
10. SMU - 3
11. Boston College - 2
12. Wake Forest - 0
13. Pittsburgh - (-6)
14. Georgia Tech - (-10)
15. Stanford - (-11)
16. Duke - (-13)
17. Clemson - (-17)
Big 12:
1. Colorado - 62
2. West Virginia - 23
3. UCF - 17
4. Texas Tech - 13
5. TCU - 11
6. Kansas - 7
7. Iowa State - 5
8. Baylor - 4
9. Utah - 4
10. Kansas State - (-1)
11. BYU - (-2)
12. Oklahoma State - (-6)
13. Arizona - (-8)
14. Cincinnati - (-10)
15. Arizona State - (-17)
16. Houston (-29)
Big Ten:
1. Oregon - 45
2. Wisconsin - 28
3. Indiana - 21
4. Minnesota - 18
5. Washington - 15
6. Purdue - 15
7. USC - 15
8. Illinois - 13
9. Rutgers - 5
10. Iowa - 3
11. Michigan - 2
12. Nebraska - 1
13. Penn State - 1
14. Ohio State - (-1)
15. Maryland - (-2)
16. Michigan State - (-11)
17. UCLA - (-12)
18. Northwestern - (-20)
SEC:
1. Ole Miss - 64
2. Texas - 47
3. Missouri - 35
4. South Carolina - 30
5. Auburn - 28
6. Florida - 19
7. Kentucky - 18
8. Arkansas - 12
9. Tennessee - 7
10. Oklahoma - 7
11. Vanderbilt - 6
12. Mississippi State - 0
13. LSU - (-7)
14. Georgia - (-11)
15. Texas A&M - (-12)
16. Alabama - (-28)
Notable Others:
Notre Dame - 25
Washington State - (-10)
Oregon State - (-43)