Sure, but top coaches don't, at least not as much as Franklin. I posted this in late October, haven't updated:
Okay, current top 10 coaches against other top 10 teams:
Kalen DeBoer - 100% (granted, only 2-0, but he is also 7-1 against ranked teams generally)
Brent Venables - 100% (only 1-0, also 3-1 against ranked teams generally)
Ryan Day - 75%
Nick Saban - 66%
Kirby Smart - 66%
Dan Lanning - 50% (only 2-2, also 4-4 against all ranked opponents)
Mike Norvell - 40%
Steve Sarkisian - 32%
Jim Harbaugh - 30%
James Franklin - 19%
Sure, most coaches will struggle against top 10 teams if they aren't a top 10 team theirself. But if you're a top 10 team as PSU has been/should be, then you should expect more than 19% (lower now, another loss added for UM, he dodged another with Ole Miss at 11).