I think it's fair to say that Guthrie's a developer's developer. He and Mark Anders created ASP.Net, which brought Windows programming into the 21st century. Right now, working under Somasegar, he's in charge of ASP.Net, all sorts of .Net-related projects -- including the Common Language Runtime, Base Class Library -- Internet Information Services for Web servers (yes, that IIS), Windows Presentation Foundation, and both Silverlight in its Web-based form and Silverlight in its Windows Phone 7 programming incarnation.
You may recall the enormous uproar following Bob Muglia's talk about a "shift in strategy" with Silverlight and HTML5. Microsoft in general -- and Somasegar and Guthrie in particular -- worked hard to contain the firefight that ensued, convincing developers that Silverlight had a glorious future in spite of HTML5's inroads.
Perhaps Microsoft's actions now speak louder than its words?
This story, "After Microsoft's latest re-org, who's going to guide Silverlight?," was originally published at InfoWorld.com. Get the first word on what the important tech news really means with the InfoWorld Tech Watch blog. For the latest developments in business technology news, follow InfoWorld.com on Twitter.