The flip side is that even though they weren't that good at stretching defenses it is the common belief that anyone of the three would provide perimeter defense at SF. But for the cost your going after one guy who played the 4 the last few years and there could be doubts about his lateral quickness (Smith, who had 94 steals total), one who played the 2 and who is seeing an athletic decline (Iguodala who had 139 steals) and Gay who had 113 playing SF. Still all of them are looking 8 figure salaries.
Why pay that much when you can have Corey Brewer who primarily played SF and had 118 steals. The plus is that Brewer is coming off of a 3.2 million dollar salary last year. For about 5 million you could have him and while he is a career 30% 3 point shooter from the 15-20 foot range last year he shot 42% giving some spacing.
If you want insurance, I'd suggest bringing in Anthony Morrow for the preseason and letting him have it out with Kim English. Morrow is a career 42% 3 point shooter and 45% FG shooter. His salary with Dallas was 4 million last year but he is coming off an injury plagued season of hip and back problems so it's conceivable he'd be willing to accept the veteran minimum of 1.2 million.
Why overpay to not fill needs? I ask you, who are the ad wizards who came up with that one?