Pedro Astacio is out of the picture and the chances of trading for David Wells remain lukewarm at best. So the Padres will look even more closely at pitchers in training camp to deepen their rotation. Names such as Clay Hensley ? the presumptive seventh-inning specialist ? Seth Etherton, Tim Stauffer and Andy Ashby are becoming more prominent in the back-end mix of candidates. ?I'd like to think that we don't have to go outside of the organization,? General Manager Kevin Towers said yesterday.