Who's on first?

Who's on first?

As far as the Arizona Diamondbacks are concerned it looks like it's going to be 23-year-old Brandon Allen. That's a "no" to Chad Tracy. That's a "no" to Tony Clark. And now, a "no" to Josh Whitesell.

 Tracy is a free agent looking for work as is Whitesell, who became a free agent Saturday. Clark may have a few swings left, but chances are pretty good he will retire to the broadcast booth, unless Josh Byrnes decides to pick up the phone and give the former Wildcat a call. The way things are going, you never know. But as it stands now, Allen is the Diamondbacks' first-sacker for 2010.

Allen played in 32 games for the Diamondbacks last season. He hit four home runs, knocked in 14 runs and batted a dismal .202. At 6-2 and weighing in at 235 pounds, the young man does have power and could pepper the right field fence with his share of hits. I guess the Diamondbacks are counting on that. It's a cinch Allen will get a day off, now and then, with left fielder Conor Jackson and third-sacker Mark Reynolds available to play first base.

Last week it was the three-team trade that made the sports headlines and brought pitchers Edwin Jackson and Ian Kennedy to the Diamondbacks, while sending the Diamondbacks' hard-throwing, right-hander Max Sherzer packing.

This week it's Whitesell. What next?