[khokhol]

We assigned a task to one guy in Ukraine and two months latter he didn't complete it. One of our colleagues did it in three days.

Given the vast discrepancy in turnaround times -- I would seriously start to wonder about the person on your own team who was responsible for cutting out and assigning work to people outside the company.

Who apparently had not even a ballpark idea of how long the task should take. And who perhaps didn't do such hot job of communicating the requirements, now did they. And on top of that, apparently went to sleep on the task of, you know, tracking the status of the project, checking whether the intermediate deliverables (were there any)? actually worked and where up to team standards in terms of quality, etc. And yet they're still on the job, for some reason.

People love to blame freelancers, and they especially love water-cooler tales about how some project (whether by a person/team inside the company, or outside), and then was done by another person/team in a small fraction of the time. But usually there's more to the story.