Definately agree with this. These names get banded about a lot, but I have only ever seen Koke play once (I think). I would be willing to bet the same would go for a lot people who keep throwing these names about. Kroos I have seen many times and he is very good, but he is a tad injury prone. In the last 4 seasons he has missed around 25-30 games due to injury. Fabregas got me excited because I watched him play, week in, week out and I know what he is capable of. He is one of the best passers of the ball and has a great eye and I can see him delivering some defence splitting passes to Hazard and Costa next season.
Kroos would be a brilliant signing. If players of that ilk become available at a decent price you normally have to get involved. We could fund the transfer fee probably just by selling a couple of fringe/loanees as well. Wages would be high but we've freed up a lot of wages already this summer.