Pro Football Focus has graded their 2019 draft eligible players. Montgomery is the #2 RB and the #6 player overall.
"David Montgomery, Iowa State, 92.1 overall grade: Don’t let the traditional stats fool you, Montgomery did as much independently of his offensive line as any running back in the country last season. He led the nation with 86 missed tackles forced on the ground while ranking second with 23 forced misses as a receiver."
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"David Montgomery, Iowa State, 92.1 overall grade: Don’t let the traditional stats fool you, Montgomery did as much independently of his offensive line as any running back in the country last season. He led the nation with 86 missed tackles forced on the ground while ranking second with 23 forced misses as a receiver."
Link