There are differing opinions on the incoming group of rookie running backs. Maybe at least one first-round pick (Alabama's Josh Jacobs), maybe not. Probably a few second- and third-rounds. Based on the combine, though, what it isn't is a fast group.

Jacobs didn't run at Indianapolis, apparently dealing with a strained groin. Or maybe he figured he'd put up a much better number at Alabama's Pro Day. Seems to have been a slow track at the combine, for the running backs anyway.

Of the 23 backs who did run, only one (Justice Hill) broke 4.45. Seven others were under 4.50. But a lot of the names you'll see most often among the perceived top prospects -- notably, David Montgomery and Elijah Holyfield (pictured) -- were north of 4.6. Kind of slow for a running back.

The table below shows how those combine times stacked up with all running backs selected in the first three rounds over the past 10 years (all running backs who ran at the combine, that is).

20143Dri ArcherPitt.4.26
20101Jahvid BestDet.4.35
20122LaMichael JamesS.F.4.35
20101C.J. SpillerBuff.4.37
20133Knile DavisK.C.4.37
20113DeMarco MurrayDall.4.37
20121David WilsonNYG4.38
20122Isaiah PeadSt.L.4.39
2019?Justice Hill?4.40
20181Saquon BarkleyNYG4.40
20143Jerick McKinnonMinn.4.41
20123Ronnie HillmanDen.4.42
20102Ben TateHou.4.43
2019?Ryquell Armstead?4.45
20101Ryan MathewsS.D.4.45
20163Kenyan DrakeMia.4.45
20123Bernard PierceBalt.4.45
20113Alex GreenG.B.4.45
20181Rashaad PennySea.4.46
20121Doug MartinT.B.4.46
20091Donald BrownInd.4.46
2019?Jordan Scarlett?4.47
2019?Mike Weber?4.47
20161Ezekiel ElliottDall.4.47
2019?Travis Homer?4.48
20171Christian McCaffreyCar.4.48
20163C.J. ProsiseSea.4.48
20143Charles SimsT.B.4.48
2019?Darrell Henderson?4.49
2019?Karan Higdon?4.49
2019?Miles Sanders?4.49
20182Derrius GuiceWash.4.49
20172Dalvin CookMinn.4.49
20142Bishop SankeyTenn.4.49
20112Shane VereenN.E.4.49
20102Montario HardestyClev.4.49
20091Knowshon MorenoDen.4.50
20092LeSean McCoyPhil.4.50
20153David JohnsonAriz.4.50
20143Tre MasonSt.L.4.50
20093Glen CoffeeS.F.4.50
2019?Trayveon Williams?4.51
20171Leonard FournetteJac.4.51
2019?Tony Pollard?4.52
20151Melvin GordonS.D.4.52
20091Beanie WellsAriz.4.52
20182Nick ChubbClev.4.52
20132Giovani BernardCin.4.53
20102Toby GerhartMinn.4.53
20181Sony MichelN.E.4.54
20162Derrick HenryTenn.4.54
20132Christine MichaelSea.4.54
20183Royce FreemanDen.4.54
20153Duke JohnsonClev.4.54
20132Eddie LacyG.B.4.55
20112Mikel LeshoureDet.4.56
20173Alvin KamaraN.O.4.56
20143Terrance WestClev.4.56
2019?Damien Harris?4.57
2019?Dexter Williams?4.57
2019?Myles Gaskin?4.58
2019?Qadree Ollison?4.58
2019?James Williams?4.58
2019?Alex Barnes?4.59
20112Ryan WilliamsAriz.4.59
20152Ameer AbdullahDet.4.60
20132LeVeon BellPitt.4.60
20152T.J. YeldonJac.4.61
20153Matt JonesWash.4.61
20111Mark IngramN.O.4.62
20173Kareem HuntK.C.4.62
20093Shonn GreeneNYJ4.62
2019?David Montgomery?4.63
20173James ConnerPitt.4.65
20113Stevan RidleyN.E.4.65
2019?Devin Singletary?4.66
2019?Benny Snell?4.66
20182Ronald JonesT.B.4.66
20142Jeremy HillCin.4.66
20142Carlos HydeS.F.4.66
20132Montee BallDen.4.66
2019?Alexander Mattison?4.67
2019?Nick Brossette?4.72
2019?Elijah Holyfield?4.78
2019?Alec Ingold?4.89

Ingold, incidentally, is a fullback. But a very disappointing time for Holyfield in particular. And plenty of other backs who will be hoping to dramatically improve on their times at upcoming pro days.

It's just one number. It doesn't matter, for example, that LaMichael James and Knile Davis were fast, and Mark Ingram and Kareem Hunt weren't; the latter players have been much, much better pros. But teams consider those numbers when making selections. Very few of these guys helped their draft stock.

--Andy Richardson