Lisa Crispin provides a couple of good stories about her experience on teams and the ratio of testers to developers in this blog entry.

The Microsoft Patterns & Practices group had put together a suggested process for implementing architecture while keeping an Agile method of software development in this article.

This email sent to a discussion forum discusses the experiences of a company with 27 development teams using Agile methods.

Jeff Sutherland and Xebia CTO Guido Schoonheim discuss their success with teams distributed across two locations, Holland and India, with data that shows similar velocity as localized teams in this video.

In her Agile Testing class, Elisabeth Hendrickson conducts an exercise called the WordCount Simulation that is described in detail with this blog post.

A video with multiple people in the agile community has been created to discuss what causes Scrum and agile to fail at this location.

Mark Levison has compiled a listing of great Scrum case studies for those interested in how others do it in this blog entry.

The “Tasty Cupcakes” site has a plethora of experiential learning games that may be of interest to teams, coaches, and trainers.

Mario
Moreira describes how infrastructure can be refactored in a similar nature as code in this article.

Lyssa Adkins defines 7 failure modes for Agile Coaches and provides some advice on how to manage against them in this blog entry.