The former Scotland international winger has also warned that Leeds will continue to lose young players such as Byram if they do not get promoted to the Premier League in the coming years.
“This is going to happen again,” Gray told the Yorkshire Evening Post. “Nothing’s going to change until the club gets back to the Premier League. It’s not what people want to hear, but it’s a fact.
“You can talk about money but I don’t think Sam’s thinking about money. He’s on a good contract at Leeds. He’ll be thinking about getting to the highest level – the same as Delph, the same as Howson, the same as someone like Snodgrass, who’s the best player we’ve had here in 10 years.
“They didn’t go because they don’t like it at Leeds. Anyone who thinks that is wrong. I honestly believe that they loved being at the club but in the end they wanted to further their careers.”
Byram will be a massive loss for Leeds if he leaves in the January transfer window, as he is one of the best young players in the Championship.
The 22-year-old, who can play as a right-back or as a right-winger, scored three goals and created 39 chances in 39 Championship appearances for the Whites last season.
So far this campaign, the Englishman has scored three goals and created 24 chances in 22 league appearances for the West Yorkshire outfit.
Byram has a pass accuracy of 75% and a shot accuracy of 33%, and has won 34 headers, nine dribbles and 15 tackles.