1. First

2. I really don't care as long as my stadium progresses as it should

3. Quality of the cement, otherwise constructions will collapse

4. My team of architects. What a bunch of lazy people. Can't fire them as they are protecting themselves with rock solid contracts.

5. The electricians. Very qualified people. I'm thinking about giving them a payrise.

Sorry but this is the most precise I can be. Experience tells me you cannot really make any plans as your victories from the 1st leg could easily turn into defeats just because the "game engine" decided so.