Quasi-market transformation (QMT) refers to the process by which the d
ominant organizational form in a field is replaced, following the intr
oduction of a quasi-market. In this article, analysis of comparative c
ase-study data reveals that, until the early 1990s, a common interpret
ive scheme, or set of values and norms, underpinned a set of structure
s and systems in many UK hospitals. These similarities of form are rep
resented as the directly managed (DM) hospital archetype. When change
initiatives challenged this archetype, the outcomes were negotiated an
d the interpretive scheme remained largely unscathed. Following the in
troduction of a quasi-market in 1991, a new trust hospital interpretiv
e scheme has emerged. For the first time, UK hospitals have experience
d transformation and now display an alternative set of structures and
systems. This article explains how the trust hospital archetype has be
come legitimized through different tracks of change within individual
hospitals.