Earlier quoted context omitted.
They want to sack the math department to create a machine learning department. But they still need people to teach the math classes for machine learning etc, and without the math professors they'd need machine learning professors or so who aren't as good at maths.
ML uses almost entirely applied math and stochastics: optimization, numerics and statistics. Besides that, just because they won't have faculty researching pure math, doesn't mean they cannot have applied math guys teaching pure math classes. Personally as a math graduate, I think it is better that they focus on areas they are good at. I assume the pure math department is not doing much. It is also good for the stude…
Please see my earlier comment. They once had a Fields medalist on their staff. And it was not a one-off coincidence. Leicester has a really good tradition of pure math.