So, i was going through Stuart MacFarlane's photo stream and saw this: http://www.flickr.com/photos/27453474@N02/7561471018/in/photostream/ He does have a proper 'shout from the sidelines' look doesn't he? I've always thought Pat Rice looked like a calmer version of Wenger on the sidelines, so will be nice to see how someone with a different temperament affects the squad.
I think you'd find that Pat Rice was one of the more vocal coaches at Arsenal. His 'firm but fair' stance was well documented. The voice you'd often hear shouting from the sidelines during games was Pat's. I think it's up to Steve Bould to make sure he at least replicates the same level that Pat had.