That's how they're performing currently, but they're not actually going to end up there. Ichiro is 104 right now on the ESPN Player Rater (which doesn't seem to be the thing you used), but would you rather have Francouer? M Cabrera? No.
If I were you, I'd be slightly worried that I'm relying on a core of players who have no track record for success. Are they having their breakout year? Possibly. But I wouldn't sit on them assuming that they're giving me the same second-half as the first-half.
And Stubbs being rated higher than Francouer only reinforces my point of getting him in your daily starting lineup.