Comment by rsync

"I would really like to see professional, established coach running around with young prodigies on a peak of their biology."

Well today is your lucky day!

https://en.wikipedia.org/wiki/List_of_NBA_player-coaches

https://en.wikipedia.org/wiki/List_of_Major_League_Baseball_...

https://en.wikipedia.org/wiki/Pete_Rose

https://en.wikipedia.org/wiki/Player-coach#Player-coaches_in...

"Though primarily known as a dominant forward "Mr. Hockey" for the Detroit Red Wings, he came out of retirement in 1973 at age 45 to play with his sons and took on coaching responsibilities with Houston."[1]

[1] Gordie Howe, playing on the same NHL team as his two sons.