Hal Steinbrenner said Wednesday that he's happy with the progress the New York Yankees have made trying to improve so far this offseason, but he wouldn't dismiss making more significant roster additions.

"It's not over until it's over. We still have a full month before Spring Training," Steinbrenner said. "We're always going to continue to improve. I'm not putting a cap on it. We've certainly filled some holes that we had. We'll keep going for the next few weeks."