Finnigan has worked closely with Moyes for 15 years, ensuring the Scot retains the mental strength required to keep moving forward in the most high pressured of situations.
Moyes will be analysed as never before as he begins the task of replacing Sir Alex Ferguson. His first official day in the new job is on Monday.
There are many reasons to be negative, not least the fact Moyes has none of the silverware his new charges have spent their careers gathering up so hungrily.
He will not be looking at the situation like that though. A decade and a half working with Finnigan ensures it.
"I don't care what it is, I always turn a situation into a positive," Finnigan told Press Association Sport.
"If it was a question of him never winning a title I would say 'fantastic'. It just makes him more hungry to succeed.
"Before I worked with Jimmy White he had never beaten Stephen Hendry. I didn't see that as a problem. I just felt he was learning how to beat him. And he did.
"It doesn't matter whether David has won titles or not, he will be judged on his interaction and within a couple of minutes the person will win you over.
"Any further perceptions are in the person's own head."
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- Sir Alex Ferguson