Just a guy observing, objectively wrote:
I've said it before and I'll say it again - Tinman's training philosophy works amazing for high schools kids (any 15-18 year old w/ any talent will reach 90% of their potential with 50-60 mpw and consistent aerobic development workouts), very well for college kids (its not unlike the training of some quality, tried and true college coaches), and not very good for professionals.
He could dominate the HS running scene if he ever decided to coach at a school, and would do very well at a smaller college with mostly underdeveloped HS recruits coming in.
Tinman already is dominating the HS scene -
1) Many of the best HS runners in the world developed under his guidance. Not just Drew Hunter, but also Aidan Puffer, Jusson Greer, Josh Edwards, all of these kids are current sub 9 3200m runners. He also coached Grace Ping to world age-graded records and countless other HS kids to great performances.
2) He coached Joan Hunter, and helped her and her husband develop a new program for Loudon Valley. Loudon Valley turned from a bottom-level HS XC/Track program to the best in the whole country using Tinman training.
He also used to be an assistant coach for a D3 college, not sure if that's worth something. At this point, he would probably only be interested in becoming a D1 coach at a top school, but without having been an outstanding runner himself (he was just a ~15:20 5k guy if I remember correctly) chances to become a D1 head coach at this time are close to zero.