Only one of those is almost 30 and coming back from a major injury, plus I would suggest judging only on goals and assists when the other two haven't played under Conte with Kane and Son in the box isn't a fair representation but take your point.Doherty got 2 goals 4 assists in 874 mins (PL)
Singo got 3 goals 4 assists in 2626 mins (Serie A)
Spence got 2 goals 4 assists in 3712 mins (C'ship)
All 3 played RWB- are we sure that Singo and Spence are an upgrade on Doherty right now?
Obviously younger, so perhaps better potential.