I think, there is a relationship between Adword spending & Google organic SEO position. Google might not do it explicitly or in a deliberate way, But there is in my experience.
For example, Assume two websites A & B are having a same SEO strength and same organic traffic.
Assume few months, we spend more money on promoting website B on Adword, the organic results are improving for the site B, but not for the site A.
This i have seen it many times, Please clarify my views.