Pros
The only real bright spot at Avaya are your co-workers. Always has been this way. For whatever reason they seem to get really great and capable people. No so with management. Some of the first line managers are good. Others are complete automatons. It's a mixed bag. Best case is an engineer who is now a manager. They're generally okay.
Cons
Current CEO is a scumbag. We've had plenty of bad CEOs before this but Alan is the worst of them all. Countless broken promises. New edict: if you're within 40 miles of an office, he is now requiring commuting 5 days a week, no exceptions. Regardless of whether you've been virtual office or not for decades previously. Salaries are stagnant. They rarely do matching 401k contributions (they decide whether to or not for each period - "sorry, better luck next year"), and the pay rises have been below industry standard for years, with no sign of changes. The product portfolio (usually a strength) has never been weaker. They were late to cloud and the offers are immature beyond belief.