[QUOTE=NY2FLDWC85;4502735]Antowain Smith is one example. During his first 4 years in the league he combined for 760 rushing attempts with an average of 755.5 rushing yards/6.5 TD's per season before breaking out during his 5th year with 1,157 rushing yards and 12 rushing TD's. I'd consider that a breakout season.
Robert Smith of the Vikings is another example, not exactly 546 carries but Robert Smith combined for 414 rushing attempts during his first 4 years in the league with an average of 472.2 rushing yards/2.75 TD's per season before breaking out during his 5th season, rushing for 1,266 yards, 6 TD's with an average of 5.5 yards per carry. He then went on to have an outstanding football career during the 3 seasons to follow.
Thomas Jones of the Cardinals/Bucs would be yet another example. 499 rushing attempts during his first 4 seasons with an average of 472.7 rushing yards/3 rushing TD's per season before breaking out during his 5th year in the league with Chicago, rushing for 948 yards and 7 TD's. I'd consider that a breakout season, especially considering the fact that Thomas Jones went on to rush for 5 consecutive 1,000+ yard seasons with 43 rushing TD's over the next 5 years.
Priest Holmes of the Ravens could be used as another example. 459 rushing attempts during his first 3 years in the league for an average of 700 rushing yards/3 TD's/195 receiving yards per season before breaking out during his 4th year in the league with KC, rushing for 1,555 rushing yards/8 TD's/614 receiving yards.
These are only a couple of examples of backs that broke out during either their 4th or 5th seasons in the league...
Antowain Smith had 840 yards his rookie season and over 1,000 yards in his second season.
Robert Smith is another bad example as he didn't have anywhere near the workload Greene has had in his first 3 years.
Thomas Jones. Also not on point with what I said. Not near the workload. He may be the closest example but he never got the same chanes Greene has gotten in 3 years.
Priest Holmes also broke 1,000 yards in his second season.