Don't worry, if Pedro leaves, it will be solely because of money. Nomar isn't the best player on this team, nor was he last year BEFORE the slump.
That said, let me make a few things clear about Nomar.
1) I bear him no ill will for tanking in September and October last year - if Millar and Mueller didn't do it at the same time, we win the ALCS definately, and maybe the WS. It's not like he wasn't abnormally hot at the plate in April and May, as people like to forget.
2) I am not in love with A-Rod, and am perfectly ok that the trade didn't happen
3) I have not forgotten the years when Nomar was the best SS in baseball
4) I think anyone who has been claiming that Nomar was slacking off on his rehab should be dragged out into the street and shot for the benefit of maintaining a quality gene pool.
Now, here's my main beef with Nomar. He turned down a 4 year, 60 million dollar offer that was WAY above market value for him, given his performance the year before. He then complained about being "disrespected" by management when he didn't get the same offer at the end of that season...when he hadn't shown any signs of 1999-2000 still being in him. He then complained even louder about the A-Rod trade, when Nomar himself seemed to be making it fairly clear through his agent that he intends to leave town. Was the team supposed to just wait for him to leave and deal with Random Guy (Pokey as of now) at SS for the future?
I don't question Nomar's desire on the field, and I think he is clearly a key player. However, 1999-2000 is gone after the wrist injury, and Nomar needs to stop overestimating his value, then whining when the team doesn't cave in. I think this fuels a fair amount of the fan criticism, and I think Nomar's complaining about the symptons right now, as opposed to the actual illness - his previous negotiations with the team.