There's a tradition we have every few years where everyone takes a look at the highest profile performers in the UK and wonders which of them will be the new Dr Who. This is immediately followed by the BBC picking someone that is not one of the highest profile performers in the UK for the role.
But hey, it works. Take 1974. Tom Baker? The guy who was the baddy in that one Ray Harryhausen film? Seriously?
I bring this up because my reaction on seeing Jodie Whittaker's name was, who? The protagonist from Attack the Block who isn't Finn? Really?