
Listen to your people and listen to your customers which is something that management doesn't do.
Cross train and realize that blowing someone's candle out doesn't make yours shine any brighter. Be more humble.
Mid-level management seems to think that their subordinates are idiots and that they are geniuses, but don't learn from their mistakes.
Giving the customer the best product and the best customer service and listen to the technicians that work directly with the customers.