Blackrock’s Bob Doll says he still sees a recovery — albeit a bumpy one — ahead for the U.S. economy in 2010.  “I think we’ll see continued mixed data, but leaning to the positive side,” Doll told CNBC. While calling it “subpar”, he said he’s seeing signs that the global recovery is indeed real. Doll also says he expects to see a rise in merger and acquisition activity in 2010 as well. And he thinks 6% to 8% annual returns for the stock market are a “reasonable” target “over the next bunch of years”.