As long as:

(1) The technical staff understand the business constraints AND (2) management understands the technical constraints AND (3) both constraints "match" you are in heaven. I've seen that. Is possible. Is nice.

More often than not, one of the 3 conditions is not met. In case of 1 and 2, if they are good professionals, talk can (and typically will) help. In case of 3, you business case sucks, that is a big problem, change company. Run.