Matrix management (and flat corporate structure) is another sign of failed corporate management. The managers have usually no qualifications to lead the people and projects they are leading. So they are clones of each other and equally qualified (i.e. unqualified) to lead all projects. This is a perfect setup for matrix management. And since expertise is unimportant, promotions are given to people who have no expertise (except to smile and make phony statements). And the system perpetuates.
Er, correct me if I'm wrong, but I think the Oracle and the Keymaker were programs. Wally's ploy here is clever, but it wouldn't take much searching to show that these managers don't exist, so it's no more than a delaying tactic really.
Wally is definitely The Oracle - knows everything inside out but won't let anyone else know it in clear words.
Whatever it is, Scott hits the nail right on the head with respect to The Matrix - All the real people had non-human names (Neo, Morpheus, Trinity, The Oracle, The Keymaker, etc) but the bot/virus had a human name (Agent Smith).