Greg Bedard has the details here.
The only thing I can surmise is that Mike McCarthy, et. al were increasingly concerned about Jon Ryan’s lack of hang time and his ability to pin teams inside the twenty. Because in every other conceivable way, Ryan is a better punter than Derrick Frost.
It’s also disappointing because Ryan seems to be a quality guy. The stories about his relationship with his father were compelling in these days when athletes make news by beating up women or doing crack (no offense, Andy). Frost, on the other hand, whined his way out of Washington.
“I feel like I was dealt with dishonestly,” Frost said. “I want to thank Danny Smith for the three years he gave me here, and I feel like he always treated me well, and I will continue to think that. But I think we all know who made the decision, and when you’ve got a draft that isn’t starting to look so good, you’re going to do whatever you can to make it look as good as possible.”