Agreed. A lot of the points seem to be stressed from the point of explaining how important what he does is.
Bring in the UX designer before you’ve attempted any UI work. I can’t tell you how many times my clients have said “I wish I’d brought you in earlier!” The UI changes are often enough to necessitate technical re-architecture. Starting with a good designer from day one will save you a lot of headaches later on...
If they nailed it on their own, they're not going to bring someone in, but still.
Bring in the UX designer before you’ve attempted any UI work. I can’t tell you how many times my clients have said “I wish I’d brought you in earlier!” The UI changes are often enough to necessitate technical re-architecture. Starting with a good designer from day one will save you a lot of headaches later on...
If they nailed it on their own, they're not going to bring someone in, but still.