Here's the thing: Wizards sucks at adventures. Once in a while they turn out a gem like "Red Hand of Doom," but most of their stuff is crap. They would be fools to stake their corporate existence on their adventure-writing talent, because for the most part they ain't got it.
What Wizards is good at is game design. So that's what they do, to the tune of something like $100 million. As a side project, they devote a bit of that game design talent to D&D. (Always worth remembering that where WotC as a whole is concerned, RPGs are a sideline. The vast majority of their income flows from their cardboard crack empire.)
Wizards made many mistakes with 4E, but insufficient focus on adventures was not among them. Considering the quality of the early 4E adventures, it was one of the best decisions they made.
What Wizards is good at is game design. So that's what they do, to the tune of something like $100 million. As a side project, they devote a bit of that game design talent to D&D. (Always worth remembering that where WotC as a whole is concerned, RPGs are a sideline. The vast majority of their income flows from their cardboard crack empire.)
Wizards made many mistakes with 4E, but insufficient focus on adventures was not among them. Considering the quality of the early 4E adventures, it was one of the best decisions they made.