Five things I am concerned about as we approach opening day (When it comes to my team, I am a first-class worry-wort.): 1. Having a 40-year-old centerfielder. 2. Counting on Dallas McPherson to have the impact everybody seems to think he'll have. 3. Having a sustained run where ANY Molina is healthy for any length of time. 4. Whether we will ever use the word "ace" and Jarrod Washburn in the same sentence again. 5. Getting a more productive offensive season out of Darin Erstad.