We absolutely need another senior RB. Ideally one who will play effectively as a wing back as well. No question in my mind.
KWP proved he can do a job, and that in time he could be a regular player, but not that we could use him for a run of games if need be.
And not awash with money? Havent we taken in about £75m this window without spending yet? £20m on a player as highly rated as him to replace Walker is good business IMO.
The only real concern is his apparent attitude issue.
Personally, I'd go with Trippier and KWP for this season, with Dier as and emergency back-up. Then if Trippier doesnt step up, or KWP doesnt look lik emaking it, sign a RB next summer. Otherwise you risk being over-loaded at RB in the event that those two do progress as we'd hope.
In terms of the cash, I'm assuming we spend £35m on Sanchez and £25m on Barkley - those are very public so thats £60m of the £75m gone. The Diop chap from Spain is another £10m if thats true which based on the level of rumours and detailed of them, I assume they are true. So unless we get shot of Sissoko or Rose, we're more or less in balance with those three deals and as is pointed out many many times on here, we have a track record of zero net spend over a number of years. I'm assuming we dont break that this summer