I like to have at least one multi position player on my roster. This year, M. Cabrera qualifies at third and LF. This gives a roster more flexibility. A guy like Relaford or, even better, Polanco, would be good to have as a backup, as you can plug them in for minor injuries or cold spells from your regulars. Sometimes you can catch these guys in a hot streak.
I, yyself, am a big fan of fantasy roster flexibility. I like to have options as the season runs on. For instance, in one of my leagues, i have a ver flexible infield.
Cabrera (3b, lf)
Reyes (SS, 2B)
O. Cabrera (SS)
Mora (3B, OF)
As you can see, i can move guys in and out of the line-up and change their positions according to the question marks in the lineup. You have to figure one of the three 3b's mora, polanco, or cabrera will have a good year. Same with one of the 2b's, Polanco or Reyes. If O. Cabrera starts falt, I might have to play reyes at short and stick with polanco at second (not desirable). My original plan for a starting line up is.
ss O. Cabrera
3b M. Cabrera
Bench, mora and polanco.
As you can see, i have a lot of flexibility here.
As for Relaford over mondesi, it depends on your teams depth. If you, like many fantasy teams, have an abundance of servicable OF's, I might go with a desi relaford or Mark Loretta, guys that will give you some flexibility and spurts of production. Mondesi will put up decent numbers, but his average will bring you down, way down, if you play him on a regular basis
98% of Americans have a favorable opinion of puppies and rainbows.
How do you spell "biased?"