As others mentioned, the whole timeline should be reviewed by the project manager and the timeframe for each phase should be reevaluated. Since the device failed in performing its major task as a weight loss aid, more research should be done regarding device safety, maintenance, risks, limitations, etc. This would require a big change in the Gantt chart Research & Development timeframe to allow gathering more information regarding the device and its specifications and to plan accordingly. Although this could change the anticipated date for the device launch, it will assist in avoiding any possible issues and would allow the risk management team to have a better perspective and understanding of the device.