from my era (28), so basically early 90s onwards from when I can really remember, IMO there are only two players who would be close to deserving a statue. They are: Gary Mabbut and Ledley King.
However, I'm firmly of the belief that having a statue outside the ground should be reserved, categorically, ONLY for the MOST legendary of our legends. Don't think we should be handing out statues willy nilly... bit like we seem to do with our 'hall of fame' (i.e. love him, but Stefan Freund?? Really?!).
Anyway, so my short list would probably be:
Manager: Bill Nicholson. He 100% deserves one, no arguments or questions.
Player: Danny Blanchflower, Jimmy Greaves, Glenn Hoddle, Steve Perryman, Dave Mackay. I'd pick either Blanchflower or Greaves.