OAKLAND -- There are lots of questions to be asked about pending roster moves and the effect they could have on the A's clubhouse. There aren't many answers, though.
Which youngster gets shuttled back to Triple-A Sacramento when Jason Giambi, who is eligible to come off the disabled list Tuesday, comes back? Is there an update on Justin Duchscherer, who was scratched from his last rehab start? When Duchscherer is ready, will Oakland switch to the six-man rotation manager Bob Geren began considering a couple weeks ago?
The answers to these questions, for the most part, are: No, no news, I don't know or some combination of the three.
"When there's something new," Geren told reporters prior to Sunday's game against the Blue Jays, "I'll gladly let you guys know."
Until then, one is left to speculate.
The return of Giambi will enhance the logjam that is the A's first-base situation. There currently are five first basemen on Oakland's roster, including Giambi and Daric Barton, who also is on the DL. Bobby Crosby, Nomar Garciaparra and recent callup Tommy Everidge have been sharing time at first.
Everidge could be the odd man out. He's been with the club for six games and has been in the starting lineup in each of those contests.
Everidge, who is 6-foot and 275 pounds, is batting .238 in 21 at-bats, but he has looked more comfortable in the Major Leagues than his statistics indicate. He batted .382 with Sacramento.
"I have no idea at this point," Geren said when asked whose place Giambi would take.
Crosby has started the past two games at first base, with Everidge in the lineup as the designated hitter. Everidge was in the field for his four previous games. Garciaparra has been limited to pinch-hitting duties recently as he copes with a quad issue. Geren said he is day-to-day.
The potential six-man rotation, which would help limit innings for Oakland's young starters, remains a possibility.
"If we had somebody ready to go," Geren said, "I'd consider that."
That somebody would be Duchscherer, who isn't ready.
Duchscherer, who had back surgery in March, missed his rehab appearance on Friday for undisclosed reasons. Back trouble has been causing him some setbacks recently.
Adam Loberstein is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.