So what's the problem there? The person going for a job in a maths department with an Annals of Maths citation isn't going to be in a competition with someone w

So what's the problem there? The person going for a job in a maths department with an Annals of Maths citation isn't going to be in a competition with someone with a big H-index because of applied stats papers... the committee won't look twice at the statistician! On the other hand if the Annals of Maths person wants a job in stats then presumably they will also have stats papers (and the stats people will be keen to know.. "what about your amazing career in pure math?!"