If you have a verizon phone, download the NFL app. You can listen (for free) to any team's broadcast. Bounce around some Sunday afternoon from game to game and you will have a new appreciation for Gil and Gino.
Yes, both are slipping, and in GC's case, a lot! However, there are a few necessaries for football announcers in my book in Gil covers them.
1. The voice. Football should be called by a deep, heavy voice.
2. None of this "we" crap. I had the Vikings broadcast on my phone the other day and all I heard was "we" this and "we" that. Yes, the team pays you but that is where your affiliation ends.
3.Don't go too fast. There is a lot to describe but do not over do it and try to get it all. Set the scene, call the action. Use the time between plays to get in what you can. Gil is a master at this. He typically calls the formation as the team breaks the huddle, lets you know how many receivers/backs there are and where they are. He acknowledges the motion (if any) and usually the look of the defense. After the snap he calls the play (here is where the action gets a little ahead of him) and then after the play, he, Gino, and Zo go over why some did/not work. Great pacing for a football game.
4. Voice inflection is good. Sounding like you are having an orgasm after any good play for your team, is bad.
5. Lastly, no whining about calls made/not made.
Gil and Gino hit all of these criteria for the most part. Few other local play by play teams do.