Jones was not coming back to UK for a sophomore season. Lamb was even thought to have returned because of the lockout. I think it's fairly easy to say by now that Jones was gone. And IIRC Jones was listed higher in the mocks his freshman year. Might be corrected on that.
People always claim the lockout is the reason TJ and Lamb returned. The evidence is murky to say the least. Yes, players like Harrison Barnes, Sullinger, Perry Jones and Terrence Jones all turned down probable lottery selections to stay in school. But none of those players cited the lockout as the primary reason for their returns; all three said some combination of a national title chase and another year with friends on campus were the biggest factors in their decisions.
And in the meantime, plenty of other players -- Kyrie Irving, Kemba Walker, and Brandon Knight among them -- didn't seem the least bit worried about a lockout.