Murray's fumble is bad but we have to remember other team's players are professional too. They can cause a fumble, break a pass or make an inteception. However, Spencer's jump-off side and Harris's non-catch punt are no-no in football 101. They are un-forced mistakes that should not happen in professional level. You never jump off-side when it is fourth down and less 5 yard. You fair-catch a ball when there is no chance for a touchback.