What actually does an architect do?

I wanted to strangle all the architect now. What the hell were they doing? Sleeping all these while! All lighting related issues had all been coordinated and confirmed during meeting weeks ago. And now, they are telling me they are unclear about the whole issue. Asshole! Then wat’s the use of having meeting to thrash out all the unresolved issue. Getting so pissed off rite now. Why can’t I just have a day of peace.