That's a shame because I liked how Tirico worked with Gruden. The best broadcasting team out there IMO. Mostly because of Gruden maybe, but I still liked Mike Tirico there a lot with him. The new play-by-play guy will be Sean McDonough.
I don't think this is recent news, but I just found out about it.
http://espnmediazone.com/us/bios/mcdonough_sean/