(Reuters) - Twitter Inc appointed Keith Coleman, founder of startup Yes Inc, as head of its product team, the third executive to lead the division in less than a year.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=vcvB9-RMeUs:sPHiH-0lczA:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=vcvB9-RMeUs:sPHiH-0lczA:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=vcvB9-RMeUs:sPHiH-0lczA:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=vcvB9-RMeUs:sPHiH-0lczA:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=vcvB9-RMeUs:sPHiH-0lczA:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/vcvB9-RMeUs" height="1" width="1" alt="" />