I was watching this interview from Broken CRT and they asked an interesting question that I was hoping we might get some follow-up on. You gave an amusing anecdote about changes that Richard and Skaff suggested. You mentioned game speed being one of the things they suggested. Would you mind talking a little bit more about their input?
For game speed specifically, I can re-post this from when it was observed that we were down to 5-to-10-minute games: Then, I can direct you to that first link for more from the Magic people. Any other information here is up to a) another post diver, or b) the dev-flavored persons.