Many business owners believe that if they hire more than one SEO to work on their website, then they’ll get better search rankings. Not necessarily.
You really should only hire 1 SEO per website. You can hire a separate SEO for each website if you think you need to, but you should only use one SEO per website. Why is that?
We call it optimization purity.
Every SEO has his or her own style and they may use different strategies. This isn’t to say that one is better than the other. That may be the case, but the real point is that if you use two SEOs to optimize the same website, they could cancel each other’s efforts. One could hurt the other and that would hurt your website.
Your SEOs aren’t going to use the same tactics. SEOs in general are a secretive lot. They don’t want the competition to know their trade secrets. So they could use the same strategies and tactics and not know it. That could lead to duplicate content issues or lead to you have a reputation as a spammer, which could hurt your optimization over the long haul.
You’re better off playing it safe and using only one SEO per web property. You’ll be happier and more successful in the end.