Well, one thing to say is that we don't know how serious the links with those people are, or who else is / was genuinely in the frame.
Of those three, probably Carsley. I'd be happier though to take a punt on someone less experienced, rather than appoint someone who's record it's erring on generous to call average, though.
How do you define average?
A Top 4 finish in the Prem and finals in the Championship playoffs and in the FA Cup is hardly average for a Championship team hiring a manager.
I like Carsley, however, he’s the only ‘viable’ candidate that hasn’t applied as far as we know. No major media source has reported Carsley as applied for the role. In any case, he has no club experience.
With RVN, he may have applied but by all accounts is waiting for a Prem job / Burnley so I’m sceptical if he even wants to be our manager.
Therefore, if not Carsley or RVN, who else is more qualified than Lampard? With Lampard, it’s a great opportunity to really resurrect his career as a promising young English manager.