Drafting has been halfway decent as far as selecting talented players. The draft problem has been 3 fold: wasting picks to trade up, switching coaches with drastically different schemes (poor fits for previously drafted players), and poor QB scouting.
Who's to blame? Hard to say. Normally I'd blame the GM. Perhaps that's appropriate here. But the bizarre Whaley press conferences makes me wonder if he's really a GM in the traditional sense or if he's just a glorified scout.
Whoever is to blame, the approach has been short sighted in recent years. There's a lot to be said for continuity. If things are going in the wrong direction maybe it's better to pull the plug sooner rather than later, but unless you're willing to commit to a philosophy for 3-5 years you're either hoping for a lucky break or you're just spinning your wheels.