Additional mistakes by AT&T

• Hanging on to Western Electric for years when it should have spun out on Day 1 after divestiture in 1984.
• Handing over its wireless licenses to the RBOCs at divestiture
• Spinning out its recently acquired McCaw Cellular/Vanguard Cellular, the one industry sector that demonstrated growth and value creation.
• Acquiring NCR and then completely dropping the ball in the computer industry.
• Failing to join with other industry participants in a full-scale assault on the regulatory foundations of RBOC dominance, letting the RBOCs fight tactically as needed and ultimately be victorious.

Some of the above are discussed in this article.