After saving many tokens i have upgraded my facility's

Click image for larger version.  Name: fac123.jpg  Views: 17  Size: 71.5 KB  ID: 21375

I would like to know what level of youth players i should get and does this depend on

Manager Level
Facility's

I am currently level 8 and planing on staying there for 1 more season
Youth Facility is at level 10