So I'll start by saying I detest the snake-oil salesmen professional scam artists that are "Agile consultants", as they have now begun to leach onto DevOps whic

So I'll start by saying I detest the snake-oil salesmen professional scam artists that are "Agile consultants", as they have now begun to leach onto DevOps which honestly is in large part has the same end goal of agile. These people are largely talentless hacks and parasites that extract value from coporations that are making money and then move onto the next victim while the actual engineers deal with the infection their ideas have left. That being said the issue I've seen and read with waterfall is that it is very slow and cannot adapt very well. Which honestly is a super great thing in certain fields, like avionics, NASA moon landers, those kinds of things, because with this lack of speed and rigour you also get a certain level of assurance and quality and predictability, assuming things retain a certain level of consistency. However in the world of newly emerging markets and the .com bubble and the new SAAS bubble being slow is a death sentence because at this point it is better to spray and pray because their are plenty of VCs willing to handle you fistfuls of cash to shoot at the wall because they are hoping to get in on the next big Facebook or Google (in reality now they are just hoping you will get bought by FB or Google which is another rant for another time.) That being said agile offers flexibility and adaptability in return for offering less predictability. This causes a huge rift however when you have in house tech resources, that are part of a larger organization that needs all the assurances and predictability promised by waterfall, but the in house resources have to compete against SaaS opponents that management is all to happy to use a credit card to purchase. The end result is tech teams saying they are agile by which they mean they respond to whoever is yelling the louadest and success is determined not by value but instead by politics and in the meantime no one is taking care of the customers because and you end up with everyone's data getting resold a dozen times, having more security holes than an Alabama "don't shoot at signs" sign, and companies spending several million dollars a year to keep some rusting old COBOL application running because it is the only thing they know for sure works right now. Sorry I might've been unloading some baggage in this post.