They were still doing in-house engineering, but in Jobs' biography it's repeatedly mentioned that Sculley changed the focus from product quality to profit and t

They were still doing in-house engineering, but in Jobs' biography it's repeatedly mentioned that Sculley changed the focus from product quality to profit and that caused the downturn in their business. Obviously, not a completely objective source, but it's not necessarily true that they were doing exactly the same things in 1998.