I agree to a point, but Marino never had had Harrison, Stokley, Wayne, and James.
Peyton didn't have the luxury of defenses with the likes of Jason Taylor and Zach Thomas for his "choker" years either. Luckily, he had Bob Sanders finally step up for him in 06, but based on the last two years, it looks like it's back to the same old same old for the Colts D, and it's Peyton who's getting the blame.
Thomas was drafted in '96, Taylor was drafted in '97, and Marino retired in '99.