Source?
Nah, seriously, it's a perspective that baffles me. And we hear it often enough. How do we know? Sure, Rodgers complained (and, oddly, he'd be about the only one I'd believe, but only because he was the first) We don't hear the other side from the club because, well, the club don't say ...anything.... ever.
Maresca and RvN have less credibility (and, tbf to RvN, I don't think he has complained... yet) Our problems are well known so any prospective manager would be asking the question.
Fwiw, I don't believe for a moment that the club would bare-faced lie. Why would they? What possible benefit is there to lying? I honestly believe managers would be made aware of the situation; the need to sell players first (and we've heard that, from managers even - so they DO know), to reduce the wages bill, the PSR situation and how it limits us in the transfer market. It's not simply about having the funds (I think we have them) it's about being able/allowed to spend them. The club has to be very careful, especially now. I'm sure any statement of intention is very much hedged against that backdrop.
I get the frustrations, from both managers and fans, but we ought also realise that we ****ed up (and you can pick your own scapegoat if you want, but it's kinda immaterial - we are were we are) and we are now paying the price for ****ing up.