Are there any pros of outstaffing your dev team from offshore?

It happened that I entered a discussion with my mates about benefits of in-house hiring, and ended up understanding that it could be more efficient to outstaff the team rather than to hire engineers in-house. Here my team helped me to gather the pros I've collected: https://upplabs.com/blog/9-reasons-why-software-development-outstaff-is-better-than-direct-hiring/
What is your opinion regarding this?