What are the main barriers to completing construction of the Sagrada Familia? Do the challenges to the basilica's construction make it a risky project? What are some possible mitigations or solution to these challenges? Who are the main stakeholders, and how have they contributed to the Sagrada Familia? How has the Sagrada Familia incorporated technology to ensure successful delivery of the project? Is the Sagrada Familia project a success or failure? Why? What are you recommendations for moving forward