Lampard isn’t my first choice but 2bh he did a good job at Derby and he managed Chelsea through their transfer embargo. Brought through Mount and Reece James - I think Conor Gallagher come through him.
Everton are a basket case and he kept them up there.
reputation wise - he’d command the respect of the players instantly.
I've seen people mention the good job at Derby, but he got loaned a load of very good players by Chelsea that were way better than most teams in the league. And they didn't go up. And as Doug doesn't seem to want loanees that kind of puts paid to that connection.
Chelsea at that time should have been top 4 minimum. So while you maybe can't call it a failure it certainly wasn't a success. And his second stint as caretaker he won 1 in 11. Same with Everton. They have been poor for some time but his time there could be consider acceptable at best, which with winning around 1 in 4 matches is probably generous.
There are plenty of worse candidates, but I feel there are likely to be many far better.
If he gets the job of course I want him to do well. I'm just far from convinced he will. I don't see anything in his managerial record that suggests he will have any more than Robins to get us over the line.