Final answer:
The developer can use a design-build arrangement to address disagreements between the architect and contractor, where the architect also functions as the general contractor, leading to a streamlined project process.
Step-by-step explanation:
To overcome the pervasive problem of disagreements and renegotiations between architect and contractor, sometimes a developer turns to a design-build arrangement where the architect is also the general contractor. This arrangement allows for a more streamlined process as it combines the design and construction phases under one entity, leading to improved communication and project coherence. An example of this would be when a team of architects not only develops the design of a building, specifying its appearance and room layouts, but also manages the construction process to ensure that the project is executed as planned.