I sometimes wonder why announcers don't watch the monitor, at least at certain times such as after a play has been whistled dead. So often I hear them wondering out loud about the placement of a ball, who made the tackle, what yard it is on, etc. - and they can't tell from their angle - but if they simply looked at the same thing their audience was looking at, they would know.
If for some reason the concept of looking at the field and then looking at their monitor in mid-sentence is too difficult of a task to master, then somebody that's in their ear from the production room should be feeding them that information.
I can understand the necessity for that type of commentary on a radio broadcast, but there is no need for them to tell us they can't see who recovered the fumble or if it's a first down when we on our coaches have a better view than they do during a television broadcast.