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NEW YORK ( TheStreet) -- Here's what Jim Cramer had to say on CNBC's "Squawk On The Street" Thursday. Cramer said the earnings at Owens Corning ( OC) will be strong going into 2013 as housing remains strong and he remains bullish on the stock. He was also upbeat on Johnson & Johnson ( JNJ) on rumors the company's new CEO may consider breaking up the company to unlock value. Cramer was bearish on MGM Mirage ( MGM), saying there are still too many casinos for what the market can bear. He also didn't like Weight Watchers ( WTW), saying that new spokespeople will not be enough to revitalize the stock. "I'm worried. Be careful," Cramer concluded. When it comes to the battle for supremacy in making truck engines, Cramer said it's clear Navistar ( NAV) is the loser while rival Cummins ( CMI) is emerging as the winner in that space. Finally, Cramer opined on Green Mountain Coffee Roasters ( GMCR). He said that when you set expectations low enough and are finally able to beat them, people like it -- which is why the stock was rallying hard in early trading. --Written by Scott Rutt in Washington, D.C. To contact the writer of this article, click here: Scott Rutt. To follow the writer on Twitter, go to http://twitter.com/scottrutt. To submit a news tip, send an email to: firstname.lastname@example.org.