"Our first unit has to play better," Wittman said. "If it wasn't for our second unit tonight, we don't win the game."
If the regulars don't stop taking too many jumpers and passing up opportunities to penetrate, Wittman said he's willing to make changes.
"We've got spots open on this team," Wittman said. "I don't know who the starting lineup is going to be Oct. 29. That's what these guys are playing for. This is preseason, but it's important, because we're trying to solidify what we want to be doing when it comes to Opening Night.
Jefferson, who said he was slowed by congestion from a head cold, isn't worried about the starters losing any playing time.
"We'll be there," Jefferson said. "Every (preseason) game is a different starting five. We're just trying to check things out. It's all about playing hard and that's what the second unit did."
Ahearn was poked in the left eye during training camp and then poked in the right eye during Wednesday's practice, but he had no trouble seeing the basket against Toronto. He made six straight shots in the second quarter, including three 3-pointers.
"Everybody is getting on me about wearing some goggles but I'm not wearing goggles yet," Ahearn said.