* Tom Heath: The Carlyle Group’s playbook
* Henry Blodget: The maturation of Mark Zuckerberg
* Too big to jail? Why can’t Obama bring Wall St. to justice
* Morning Call: U.S. futures point lower, European shares tumble and the Nikkei hits 3-month low.
* Kara Swisher: This weekend in Yahoo
* Garrett Jones: The recession’s invisible victim is trust
* Mark Boslet: Has “lean startup” produced results?
* Allen Murabayashi: Why Instagram is terrible for photographers
* Sarah Lacy: Sequoia Capital confirms stealth “scout” program
* Get Term Sheet: Sign up for our daily email on deals & deal-makers
* Nick Dunbar: Nature bits back in messy world of derivatives
* William Cohan: Lehman emails show Wall St. arrogance led to collapse