Because the play book is to spread the floor when Harden has the ball to allow him more space to drive, sometimes with a single screen.
<blockquote class="twitter-tweet"><p>Harden 1 of 6 since first quarter. Looks unsure of himself. Has been wearing wrap on right knee since collision with Scola.</p>— Jonathan Feigen (@Jonathan_Feigen) <a href="https://twitter.com/Jonathan_Feigen/status/324004421342208000" data-datetime="2013-04-15T22:40:48+00:00">April 15, 2013</a></blockquote> <script src="//platform.twitter.com/widgets.js" charset="utf-8"></script>