It's arguable in the Prem that both Southampton and Spurs haven't ... not when you look at the number of their academy/youth players who have recently come up through the ranks into the senior squad and/or first XI, with even more about to follow.
If we are talking about producing players for midtable sides, with no disrespect to spurs & S'oton, You can say the same about United. We have been producing Youth players who are good enough for any team other than Top 4, therein lies our problem. The likes of Evans, Cleverley, Welbeck are good enough for most teams in the PL, no matter how bad they have been at United. That's one of the reasons we have so many of ex-united youth level players all over the football league, let alone the PL.