The club's owners have made an extra £100m available for "team strengthening" ahead of the January market.
"First and foremost, I think it's hugely positive that the Lewis family is clearly showing their interest in doing everything they can to improve the club and back the club and want us to be as successful as possible," Frank said.
"I think that's a sign of it, that they are injecting cash into the club. Also, because that's the thing I'm learning here with all the scrutiny, it's remarkable the three rumours about takeovers get so big.
"I'm so glad I'm not reading too much newspapers and nothing in social media. Just listening a little bit to the brief (from the press officer) and then you guys ask me questions because you can think too much about that.
"But the key thing is, they show their big, big, big interest publicly in trying to help the club. We know it internally.
"And how we will spend the money, of course, we will keep that for ourselves."
The Dane also said: "I think this world, you get surprised sometimes both ways. I think for me if you spend ten, 100 or 150 million - of course there's a difference in the amount - I think the most important thing is that we have a very good recruitment strategy.
"And we're very aware of what we are recruiting and what we want in. And then from there take smart decisions. So that's it."