How so?
Colston actually has the better 40 time compared to Brandon Marshall, not Jennings but then again I feel Colstons size makes up for it compared to Jennings. Both Colston and Marshall are 6'4, both weigh about the same, both have the same vertical and the same cone drill stats. Jennings beats both in those measurements except vertical but I think Colstons size nullifies the advantages Jennings has.
Plus as both a Broncos and Saints fan I would give the leg up on Colston when it comes to football smarts on and off the field. So I guess I would say I dont think your assesment is correct in saying both are better athletes than Colston. Also as a fan of both teams I would take Colston before Marshall if the draft was held again today.