Bell isnt the best back in the league though ....
several guys are better runners ....
some are better pass catchers ....
some are better runners and good pass catchers too but unless on your team in your system who knows may be best in league ???
Kareem Hunt per example 4.9 ypc as a rookie ... almost 1400 yards on 272 rushes ... caught another 450+ yards of passes
Bell had 50+ more rushing attempts and less yards than Hunt ....... Bell had 30 more catches and only 100 more yards than Hunt