The incident -- in which Stringfellow's lawyer, according to the Seattle Times, said Stringfellow was just protecting a teammate who was a Broncos fan -- is not indicative of the player Duffy calls "String."
"He was awesome in my program," Duffy said. "He's a really good kid. String, I can vouch for. He's babysat my kids."
Duffy compared Stringfellow to Enunwa -- who recently completed his eligibility at Nebraska and was selected in the NFL draft by the New York Jets -- in terms of size and physicality.
"But String is more experienced than Quincy was," Duffy said. "String was a three-year starter, whereas Quincy was just scratching the surface in his senior year. String was involved in a million 7-on-7 games. His experience level, coming out of high school, was much greater than Quincy's."