4. Lawrence McCutcheon
Back in the third round of the 1972 NFL Draft, the Rams would draft a guy who went on to become their fourth all-time leading rusher in Colorado State's Lawrence McCutcheon. In eight seasons with the Rams, McCutcheon ran for a total of 6,186 yards and totaled over 1,600 receiving yards as well.
McCutcheon's best season in a Rams uniform came in 1977 when he ran for a career-high 1,238 yards and seven touchdowns. The year prior, he did end up with two more rushing touchdowns for a career-high nine. And, back in 1973, McCutcheon finished with a career-best 5.2 yards per carry.
Overall, he enjoyed consistent success and a few bright spots in each of his seasons with the organization. That's what made him a five-time Pro Bowler, all of which came consecutively from 1973 to 1977. After the 1977 campaign, McCutcheon's career fell off and he never ran for more than 420 yards in a season before his final year in 1981, coming in Buffalo.