I'm afraid it's all abount managing expectations. Lots of industries have a set period of time each year when production shuts down. If the customer expects to have no deliveries during July and August, then they are content and can plan accordingly. As can the company you work for.

The trouble is, how many managers/sales people have the either a) the balls, or b) a relationship that allows expectations to be managed that is beneficial for both parties. Not very many, that's for sure. Usually, the customer dominates the relationship, managers go on holiday and the folk on the shop fall take the pain.

It would help if projects were seen to be delivered on time.

Great expectations .....