Have you ever noticed?
1.)First off there were in fact 3 Quentins. I just saw the very first episode yesterday and they had a different boy playing Quentin. He wore glasses with tape in the middle, I guess he was supposed to turn out to be the nerdy child, rather than the "trouble-maker".
2.) Second of all, I noticed that in later episodes (sorry but I have no clue as to what episodes are in what season or what they are called) where Grace has the very short hair cut. Where she meets Wade's demolition friend who comes to be with him during his divorce. That in quite a few of the epiosdes during this time, she talks as if her nose is extremely stuffed up. Now someone may say she had a cold, but for a whole season? Come one now, noone has a cold for a whole season. Allergies? Maybe. I don't know much about her as a person, and love the show but I do think I recall hearing that she had a drug problem. So maybe Grace was doing a little coke or something?