As far as him being abused this year, Murray carried the ball 392 times.  In 4 years Murray has a total of 934 carries in 53 games.  To compare...Adrian Peterson carried the ball 1198 times in his 1st 4 years and in 61 games.  That is 164 more carries than Murray had and 8 more games over his 1st 4 years.  Adrian Peterson played in only 12 games his 5th year, but in his 6th year he ran for 2097 yards & 1266 in his 7th year.  His 8th year, this past season...he only played in one game due to suspension.  So Murray isn't as over used as you would think since being in the league.  This year sure, a lot of carries, but his 1st full season. 

 

Or take Alfred Morris.  He has only played 3 seasons.  So far he has carried 876 times in 48 games.  58 less carries than Murray in only 5 less games.

---