There are things in motion behind the scenes already. I will give you a case in which Baptist Hospital purchased land to build a hospital in Sunrise just off Sawgrass Expressway and Oakland Park Blvd near Fla Panthers arena. The wheels for this were in motion 2 years before they formally announced it was happening which caused Broward Health to speed up a project because they've had land in Sunrise for 20 plus years and did nothing with it.
Also Tropical Park is not City of Miami, its run by the county and yes they could build something there if it is going to benefit the county and community in the long run which is what Ruiz wants to do. He wants this to be not just a stadium but multi purpose facility, shops, restaurants etc.
Are there many hurdles that are going to need to be cleared? Absolutely thanks to the Marlins fiasco, but its not impossible
People can crap on Ruiz if they want but I will say this... at least the guy is trying to attempting to do something for the program.