Is OKC lacking from 3-point land?

Minnesota Timberwolves coach Rick Adelman has seen what his team looked like with and without Kevin Martin this preseason, and the difference is night and day. “Totally different,” Adelman told the Star Tribune. “He’s such a scorer, and he’s very difficult to guard. A lot of the things we’re doing are because of him. ..."

That, in a nutshell, is the same realization Oklahoma City could have this season. Having lost Martin to the T-Wolves in free agency, it's questionable whether the Thunder have anyone capable of stepping up and filling that role, especially with Russell Westbrook out of the lineup. Is Jeremy Lamb that guy? Will Thabo Sefolosha take more 3s?