Tons of examples but this is a good one.
In 2009, Citrix publicly made fun of using UDP for ICA protocol:
https://www.citrix.com/blogs/2009/11/12/how-many-protocols-does-it-take-to-deliver-a-great-user-experience/
One of the major design flaws in PCoIP is that it relies exclusively on UDP for deliver bitmaps. UDP is valid for some narrow use cases but PCoIP relies on it entirely. When you need a reliable transport, TCP is a much better option
Now in 2018, Citrix claims, that UDP by default is the best option. So what changed?
Step-1: Make fun of competitors
Step-2: Try to figure out why customers are going to competition
Step-3: F---. We made a mistake and the customer and the competitor is right.
Step-4: Fix the issue by copying the idea from the competitor. But never give them any credit.
Is Citrix Cloud any good? Why is Citrix making fun of small startups who claim that Citrix product s---s in the cloud? Suing them to keep them silent?
History will show that the company will go down because of lousy leadership. Both business and technology leadership. Juan - shame on you!