Incase you have any plans of involving your in-house SEO team and if you have decided a deadline for its completion then, they will always cross the deadline, you will tend to make changes regularly thus not completing it on time. Therefore you should outsource it to other company, because they will start as per requirement and only if they feel changes are required they will or else they will not make any changes, thus completing the project on time.
Implementation of Variety of Resources & Ideas:
Your in-house team will not have as many ideas compared to the SEO company you hire to provide you the services. They will think out of the box and generate unique ideas to optimize the website.
Reduction in Cost Factor:
Most people think that outsourcing SEO is expensive, but that is not true, because they will charge you only once and will do the optimization as well as the maintenance. But in the in-house team it would be much costlier as unnecessary use of resources will be done. If you are looking for the same SEO service then log onto KOL Limited.