I think it's creepy, but I don't think it's necessarily a sign of desperation. For instance, in 2008, Urban Meyer repeatedly called Carl Moore's (WR recruit) girlfriend trying to get in good with Carl. He wanted the woman to commit toFlorida's gymnastic team to help with his recruitment of Moore. Though creepy, Meyer was one year removed from a national title, had the Rivals #1 recruiting class in 2007 and the #3 class in 2008. It wasn't desperation. It's just a creepy thing that competitive coaches like Harbaugh and Meyer think is ok for some reason.
According to the woman, Maranda Smith, she talked with Meyer "every day back in November when he was recruiting Carl [Moore]. He kept asking how Carl was doing and [he] wanted me to come [to UF] and do gymnastics."
This article, which calls Harbaugh creepy, includes Meyer's 2008 tactics in the creepy category, but also notes that what Meyer did was not against NCAA rules.