What strategy approach did the 'Roche Diagnostics case study use to operate their business? First provide a synopsis of strategy processes and strategy as practice as concepts, then use them to analyze the Centralized and Point of Care Solutions (CPS) business area's approach to strategy development as presented in the case. 

Include in your analysis the approach's strengths and weaknesses and your conclusions about its suitability. What additional or alternative strategy process steps and/or strategy as practice tools, roles, and aids could CPS leaders have taken to strengthen their approach?