From Nathaniel Vinton and Christian Red of the Daily News:

"He's open to everything. That doesn't mean he can do everything. He's keeping all options open," MLB spokesman Rich Levin told the Daily News, referring to Selig. ...

"Once you start tinkering, you can create more problems," Selig told USA Today, referring to the record books. "But I'm not dismissing it. I'm concerned. I'd like to get some more evidence."

Via Andrew.