If Foden wasn't ours, let's say he played for Southampton. If it was a choice between Bellingham and Foden in Midfield for 100m, I know who I would go for.
Although the Brummie is a top player and has a very high ceiling, I would still go for Phil as he has proven record in the league.
Phil in midfield, right now, is better than Jude. But Phil can also play in multiple positions and excel in them.
So, in conclusion, let's appreciate the players we have already got, if, and it's a big If, Jude goes to Madrid.