Calum Chambers broke through at Southampton as a right-back, and has played most of his career there - whether it was at Arsenal or elsewhere. He even played for England in that position.
He has always preferred being in the middle. Now, aged 29 at Cardiff City, he is getting a a real run there, spending the entire season so far in the centre of defence and now as a defensive midfielder.
But he has no regrets.
"As a player you'll always have preferred positions," he says. "Right-back is where I started my career. I made the decision before I broke through to give it a go as there was a clear pathway into the first team at Southampton for me in that position.
"But when you make your breakthrough there are people who will fixate on that being your sole position. I'd only started playing it a year or two before my breakthrough at Southampton, but it stuck with me.
"I wouldn't have got to play for the clubs I'd played for if I'd said no to playing at right-back. I'm very happy I did.
Kenzo Goudmijn does not like being subbed off. But it is something he has had to get used to in his first season in England at Derby County.
"I don't want to get subbed off, or be on the bench!" he says. "But sometimes you just have to because you play so many games here.
"In my head with my Dutch thinking, if you're on the bench or get subbed it's a bad thing. But here it's a good thing sometimes, because they are looking out for you by subbing you off. It's something I need to get used to.
"But once I can get my body to really adapt to the intense amount of games, which is different to back home [in the Netherlands] I'll feel like I can show myself more and more on a weekly basis. I just need to keep working hard on my body and in the gym. That's the big next step for me."
QPR is the 11th club of Michael Frey's career. The striker, now 30, has played in Germany, Switzerland, France, Turkey and Belgium, before coming to England.
Now 30, he admits it wasn't always his aim to have such a nomadic career.
"Sometimes I wanted to stay [where I was]," he says. "But then a club would come in that's better than where you are and you go. Sometimes the team want you to go. It's not always the player who wants to leave the club.
"There is always a story behind you leaving a club that people don't see. I enjoy it sometimes once you've adapted. But it can be hard and sometimes tough, especially when you're young.
"But now I have a little bit more knowledge about football and everything around it."
Carl Piergianni has been a regular fixture in the EFL for several years now, but it wasn't always that way.
"I didn't expect to be a League One captain at all," the Stevenage skipper says. "I made one appearance for Peterborough when I was 18, but I don't really count that. I then didn't kick a ball in the EFL until I was 27. It was a long slog in the National League and National League North for me, having to fight to get back up.
"I then had the disappointment of leaving Salford in League Two, then getting relegated with Oldham from that league was a real low point for me.
"Now, when you're walking out as captain in League One against the likes of Birmingham or Huddersfield, it is a great moment for me. I wouldn't have believed it could happen if you'd asked me six or seven years ago.
"But once you get there you realise you can do it, and it doesn't take long to settle in. I've had to work on things to try and get better every day, but it's still the same game of football."
Robbie Gotts still has to pinch himself sometimes that he got to live out his childhood dream of playing for Leeds United after coming through at their academy.
"There were times I was travelling with the team and I was the 19th man and not even on the bench," the 25-year-old Barrow midfielder says.
"But to even be doing that as a Leeds fan and with all my friends back at home who were Leeds fans, it was ridiculous.
"I remember the first time I got called up I rang my mum, dad, friends, my partner and being so proud for being recognised, even though I wasn't involved.
"I probably didn't realise how important it was to be around it at the time. When I look back on when they got promoted, I really did sponge all the knowledge I could from those players."
But who was the toughest he faced in training? A man known among Leeds fans as 'El Mago'.
"We did 11v11 in training and it was the starting team versus those who weren't playing. I had to mark Pablo Hernandez and he made me look silly! I was just chasing his shadow the whole time and he put it through my legs about 10 times."
If you look up the word 'adaptable' in a dictionary around Prenton Park, you may see a picture of Connor Jennings. The 33-year-old is a striker by trade for Tranmere, but has literally played all over this season.
He has filled in on both flanks, and as an attacking, central and defensive midfielder this season. Even at the stage he is of his career, he says he will always play wherever he is asked.
"I get asked a lot! But literally if the gaffer wants me to play in a certain position I won't say no to him," he says.
"I get told where to play and it's down to me to perform there.
"I do keep forgetting how old I actually am, even though it's not that old! But I've been lucky enough to play with so many older pros who went into their 40s. Watching them and training with them, you learn a lot of things from them. I feel like
I've taken that all on board. The legs are feeling good and I'm feeling good."
All 7.45pm kick-off unless stated
