"Lars Rasmussen, the engineering director at Facebook who is heading up the project, had in his past once headed up one of the failed efforts at an enterprise social network, Google Wave."
Lars Rasmussen was also the guy behind google maps. Seems a little unfair to set it up like the above.
It definitely should be noted, simply because Maps is such a huge success and professional achievement. On the other hand, this is relevant framing in the sense that he's probably learned a lot from Wave and will apply those lessons here.
It is relevant but could include maps as his other accomplishment to not brand him as a guy who potentially goes from failure to failure. He is a big deal behind one of the biggest digital innovations of all time IMHO.
Lars Rasmussen was also the guy behind google maps. Seems a little unfair to set it up like the above.