By Matt Hladik The San Francisco 49ers claim to be high on Trey Lance, but Colin Cowherd isn’t buying it just yet. On “The Herd” today, Cowherd explained why he’s a little “suspicious” on the second-year quarterback. In his eyes, the 49ers are trying too hard to “sell” people on Lance. Underneath the hype, Cowherd thinks the team is a bit concerned about the former No. 3 overall pick. “My gut is, the Niners don’t demand a ton from the quarterback. It’s a very run-centric offense. It’s smartly schemed-up,” Cowherd said. “My gut feeling is, I’ve never thought he has a pretty delivery system. It’…