I would not call Cupertino, Santa Clara, or pretty much anywhere in the South Bay "high-density" except downtown San Jose, and there are a lot of employers and employees getting along just fine in this area. Could transit be better? Absolutely. For one, 85 could use a few more lanes and a rail line. But instead of trying to convince employers to move their office to denser areas that are currently better served by public transit, I would suggest that we invest in improving the infrastructure in the whole area.