Things I know and think I know:
You would find few folks more opposed to a four-team playoff system in college football than Nebraska head coach Bo Pelini.
In fact, he is against any sort of playoff configuration -- four teams, eight teams, 24 teams, 84 teams, whatever.
"I think they should go back to the old system, but that will never happen," Pelini said.
In the "old system," teams played in bowl games, then the polls (media, coaches) decided national champions.
Pelini is "OK" with the current system.
You want to rile him? Ask about the seemingly inevitable coming of the college game's first playoff in 143 years, likely with a four-team format.
He recently studied a few playoff proposals, but none came close to swaying him.
Pelini stands by previous statements regarding a four-team playoff.
"Be careful what you ask for," he said in March. "We have a pretty good product in college football right now, with the bowls. ... There are a lot of good things going on in college football. How do you get a four-team playoff without messing up a pretty good thing?
"I think that's how I look at it."
I know coaches, including Pelini, that are genuinely concerned about the future of college football. Especially troubling for many is the possible decline or disappearance of bowl games. The bowl system surely would suffer if -- OK, when -- the playoff field expands to 16 teams and beyond.
Let's say the playoff field eventually reaches 16 teams. Think of the increased pressure coaches would face (this is my take, not Pelini's). Too many fans would consider a season a failure if their team failed to make the playoffs. Turnover among head coaches would escalate dramatically.
Head coaches' annual salaries also may escalate as agents use shaky job security as leverage.
Let's not get carried away. Change can be difficult and scary. I'm keeping an open mind as the college football brain trust hashes it all out. Perhaps Pelini eventually will warm to whatever playoff is in place.