A senior programmer of mine is paid $120k per year. Yes, he is very good and a fast coder too.

Though, is it possible for this person to be more productive than outsourcing 10 people from Bangladesh or Pakistan and pay them $12K per year?

Just wondering cause I run a software company and have been challenged with this question. As good as one person is, how would he compare to 10 people?

I appreciate any experience one can share with outsourcing and don't forget to multiply that by 10.

EDIT 1

Forgot to mention that the current $120K paid programmer is a Pakistani (migrant). So please it's not about race or where the outsourced workers comes from.

EDIT 2

An interesting proposition came regarding the programmer's age. My current employer is 44 year old age. Most of the outsourced programmers will be in their 20s. A team of younger coders vs one "old" coder?

EDIT 3

Thank you for all the comments so far. Most of the work we do are quite simple and somewhat repetitive. So outsourcing should be fine based on the comments seen. The current $120K per yer developer I have is good but like any of us he has issues. Some aluded that it might be ideal for me to let him manage maybe another 3 more developers from Pakistan cause he's Pakistani himself. But looking at his fit, he has more of the Mark Zuckerberg type personality.. timid and can easily be bullied. I'll have to work through my spreadsheets on this. But so far, all answers have been very good!