Indeed. It's so obvious I always shake my head in disbelief when people say "give Bart a go", "is it time for Bart to take over" etc.
No, no it isn't. KD is a lot better. People say, "Bart commands his area", because he comes for crosses. That's fine if he gets them but he looks dodgy.
People say, "KD's distribution is poor". Well: first they're wrong, it isn't; and second, it is infinitely better than Bart's. He might be better at the odd impressive throw but his bread and butter kicking is gash.
Bart could still be a good player for Saints but let's not engineer a situation where we drop a better goalie just because he has the odd good game.