Er … It is not like going down local Sainsbury's and buying a bottle of white wine!!!
Just because KR wants a certain player, that player needs to want to come to the club.
He might like the club but may not want to move his family to oxford.
He might be contracted to another club, if so permission is needed from that club.
Terms need to be agreed.
Other clubs might offer him slightly more and over the market value, so quite correctly we drop out and move on.
There are 1001 reasons why KR's plan might not go to plan.
I'm sure come next week most positions and type of players KR wanted will have come and 90% of the plan will have worked.