Furthermore, I think it's best to consider Agile in its proper historical perspective. When it first emerged, its principles -- as you've enumerated from the manifesto -- were uncommon enough to be novel and insightful. In this context, the Agile philosophy was a legitimate reaction to the problems of its day. Whether or not it's been an effective remedy to those problems is a matter of hotly contested argument. But one is, perhaps, inclined to be more charitable to Agile when fixing it into historical place.
In principle, I don't think it's fair to call Agile -- the core, original theory -- a "sham." Rather, the "sham" is all the rigidity, trappings, and liturgy that have grown up around Agile since it reached its saturation point. At some point, Agile started to ossify into a shadow-image of everything it was intended to fix. But I think that failing reflects the nature of its practitioners more than it does the core philosophy.
Furthermore, I think it's best to consider Agile in its proper historical perspective. When it first emerged, its principles -- as you've enumerated from the manifesto -- were uncommon enough to be novel and insightful. In this context, the Agile philosophy was a legitimate reaction to the problems of its day. Whether or not it's been an effective remedy to those problems is a matter of hotly contested argument. But one is, perhaps, inclined to be more charitable to Agile when fixing it into historical place.
In principle, I don't think it's fair to call Agile -- the core, original theory -- a "sham." Rather, the "sham" is all the rigidity, trappings, and liturgy that have grown up around Agile since it reached its saturation point. At some point, Agile started to ossify into a shadow-image of everything it was intended to fix. But I think that failing reflects the nature of its practitioners more than it does the core philosophy.