Programming note: Watch Matt Maiocco’s full interview with Kyle Shanahan on “49ers Game Plan,” airing at 10 p.m. PT Friday after “Warriors Postgame” on NBC Sports Bay Area.

Kyle Shanahan often gets the credit for the 49ers’ offensive success, but San Francisco’s coach is here to tell you it’s the result of a collective approach that wouldn’t be possible without his staff.

Shanahan sat down with NBC Sports Bay Area’s Matt Maicco on “49ers Game Plan” to detail San Francisco’s “open-door policy” for constructing offensive game plans and how that collaboration brings out the best end result.

“It’s not only an open-door policy, it’s expected,” Shanahan told Maiocco. “That’s what a lot of those guys’ jobs are. People give me a lot of credit because I call the plays and stuff, but that’s the easy part. I mean, it’s putting together a game plan, which, we all do that. I’m a big part of it, but from the pass-game standpoint, it usually starts with [offensive coordinator Klay Kubiak], the run game starts with [offensive line coach] Chris Foerster and [tight ends coach] Brian Fleury.

“Then every position group coach is responsible for their players and executing properly. There’s not one time where they don’t have input in it too, where they’re like, ‘Hey, why don’t we try it this way?’ Sometimes you shoot it down and sometimes we give each other crap for it and we’re not the nicest to each other but it’s kind of a little fraternity in there where we’re always trying to challenge each other to come up with better ways to do it and if you have soft skin, you’re not going to enjoy these conversations too much.”

So what happens when Shanahan is presented with an outside-the-box idea? San Francisco’s coach emphasized he has no problem with unorthodox suggestions, as long as they’ve been thought out.

“I’ll listen to anyone, but they better have thought it through,” Shanahan said with a grin. “There’s guys who can come up with some small idea but once I ask one question about something and they’re not ready for that, a lot of times they get kind of insecure about it, they’re like, ‘Oh, I didn’t think about that other front, it’s just that one look.’

“What if this player is not there? What if they’re playing a 3-technique instead of a bubble? What if it’s weak rotation? What if it’s cloud? That’s probably why we can’t do it. I always try to shoot things down, and the guys who keep coming back with it and have answers, then you know how much they believe in it, and I always want people to make me believe in it so I can use it.”

Shanahan, who is no stranger to moving during his long football career, likened the process to the same he experiences when he is house hunting in a new city.

“I always give the best example, when we move to new places and have to look for houses, the way I look at a house, I go in there and say everything that’s wrong with it,” Shanahan said. I can’t tell you how many times after my wife has been in tears, she’s told me I’ve embarrassed myself in front of the realtors, she’s so upset. I’m like, ‘What do you mean? This is the house I want, I love this house.

“She’s like, ‘You pointed everything wrong with it?’ I’m like, ‘Yeah, they answered the good questions. They said, ‘We could fix that.’ They said, ‘That wasn’t as bad as I thought.’ Do I have to say what I love about it? I’m just trying to find out what I don’t and we’re good with that. So let’s do it. That’s kind of how I look at plays too. Once you go through all the things wrong with it and we can solve those and figure out how to get around it, now I think it’s a good play.”

Whether he’s picking a play or a new place to live, you can be assured Shanahan does his due diligence.

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