College fans might not notice new first-down clock rule, but some coaches are wary of its effect

FILE - Officials measure for a first down during an NCAA college football game between USC and BYU, Saturday, Sept. 14, 2019, in Provo, Utah. For the first time since 1967, the game clock will continue to run when a team makes a first down rather than stopping until the chains are set and the referee gives the ready-for-play signal. The exception is during the last two minutes of the second and fourth quarters. (AP Photo/George Frey, File)