What's with the fareboxes and why won't they just get new ones

Dear Al, Tri-Met has just recently refurbished the ominous fareboxes, much to the demise of the drivers....they are malfunctioning at a galatic rate !!! This has added no end of frustration to the drivers' already list of problematic elements to juggle,(not to mention the miscalculations that are occurring with the auditing dept) . I am speaking from center street experience, and do not know if Powell and Merlo were involved in last weekends' installation of refurbished machines. There seems to be a more than 50% failure in the machines in question...Who is the contractor, and why the Hell didn't Tri-Met just opt for the full replacement of all Fareboxes ?