As I was told in one of the
Trek XI review threads, there are no such things as plot holes...just imagination holes, where you the viewer are to fill in the blanks. It gives a movie a free pass.

Yeah, I don't believe that either.
I liked
Nemesis. I don't think it deserves all the crap it gets. I think the premise is strong, as well as the theme the story was presenting. Then again, I find the whole nature v. nurture thing interesting.
However, I do realize that it is not a polished film and could have used a better director (not necessarily one that is familiar with Trek history, but at least one that can construct a logical flowing story) or at least a script consultant to iron out some of the bumps that were featured in it (bottomless pit in the
Enterprise, anyone?).
The few other problems that plagued it, I am sure, dealt with it's release date (not really good to have this film released in a season with about 90 other hotly anticipated flicks), coupled with the fact that the script was leaked online about a year before the movie causing an extremely early bad word of mouth. Also, I just don't think Paramount cared enough about the movie. They seemed to just give Braid the directing job "just because." Supposedly it was the highest marketed Trek movie up to that point. How? Where? I never saw anything, not even commercials on TV.
And to add insult to injury, we are told that this is Picard's clone. He looked NOTHING like Picard except he was bald, that's it. And to insult us even further, they pull this contrived scene of "Picard in a photo" that also looked nothing like him.
Oh, come on. Of all the things to complain about, this is probably the dumbest. That is one of those things you just have to run with. Chris Pine looks NOTHING like William Shatner, yet he is meant to be young Kirk and is even recognized by Old Spock. Yet, no one complained about that in
Trek XI.
Romulans create clone of Picard (a clone which, remarkably considering it's a frelling clone, looks nothing whatsoever like Picard) to...what, exactly?
They were going age him quickly and replace the real Picard (obviously in an earlier point in his career) as a spy in the Federation. However, governments changed and so did their plans. This was explained in the movie.
Plus whenever we saw young Picard in Next Gen it was clear that he did once have hair!
Schinzon's head looked pretty obviously shaved. I just assumed that the character shaved it to psych Picard out. And there is nothing ruling out that Picard shaved his head earlier in life. Maybe he shaved it during cross-country season. As established in BoBW, Picard was a runner, and many runners seem to do that. The showing of that picture was probably done to further the connection for the viewing audience and, again, this is one of those things that you just have to run with.