Putting the facts, stats, and records aside, it should go without saying that a claim like this is opinion based, and is a claim that can change from person to person. With recent success, but not enough to win a Super Bowl, there are rumors that Shanahan should get fired for not being able to continue the 49ers historic success. With 7 winning seasons as the 49ers head coach, and an overall record of 70-62-0, Shanahan has proved do be an effective coach, to an extent. Since 2017, he has lead the 49ers to 4 playoff appearances as well as 2 Superbowl ones, ultimately coming short and losing. He currently holds the highest playoff winning percentage as a coach .667 (8-4 record) in the playoffs without winning a Suberbowl. Now with that being said, based on the stats, Shanahan appears to be a good coach. Therefore, this fact check cannot be tru or false, and it entirely opinion based.