I think the biggest impediment to that is just Parker's frequent health issues that keep him from taking the field with the same athleticism as he did today. If both those guys stay healthy I'm not envying any team that has to take care of two guys with that kind of physical talent on the same offense.Tua to Parker/Waddle = Marino to Duper/Clayton?
Maybe not, but an unlikely possibility is there if only Parker wasn't as old.
This is just a random thought...do not take seriously.