the AI consistently places lesser graded players at the top of the depth chart. Any reason for this? My QB is graded 84 and riding the pine for a rookie QB that is graded 79. I have RG graded at 79 being benched for an RG that is 69.

Ai values players based on ratings and coach preferences, not necessarily by OVR

I noticed when there was a much better player in Ratings and skill the main thing is the older better rated player say 29 to 30 plus Year-old is benched for a younger lesser player.

Yea, I found what you are talking about. It should be fixed in the next build. The age modifier isn't supposed to be that strong when setting lineups.