I'm not saying Formula 1 drivers have the engineering expertise to do the actual design work, but some consultancy would be nice (assuming that Tilke (or whoever will design Miami GP) hasn't consulted with other prominent drivers for this track or previous designs). However, I do think that getting consultancy from a driver currently associated with a currently participating team could be a conflict of interest. For example, Lewis Hamilton and Niki Lauda shouldn't be consulted since they both have ties with Mercedes AMG Petronas F1 Team, even though I think drivers of their caliber (Lauda especially) would have very interesting things to bring to the table.