Keegan has spoken to owner Mike Ashley and chairman Chris Mort in an attempt to land "three or four top-class players".
The names are there, so now it is up to Wise, vice-president Tony Jimenez and technical co-ordinator Jeff Vetere to get results.
Keegan: "We had a meeting a couple of weeks ago. We really put our two lists together because they have got a massive expertise in Europe.
"While we on our list have got all the top ones, they are looking at the ones who maybe you can get who will be the next top ones, but are younger.
"When we put them together, it was quite interesting.
"That's it now. If someone asks me how we are getting on with our targets, I can honestly say, 'I don't know' because I am not party to that.
"But I will know the minute they are complete or have failed, I guess - hopefully complete."