Seems I never learn.
For one, the age old adage that says if you want something done, you gotta do it yourself.
The aspiring manager in me says (in the style of Rene from Allo Allo), "You stupid fellow! You forgot to follow up the next day!"
Ah yes, the effective manager doesn't just fly by and drops a task-bomb on someone, be he friend or subordinate or tech support.