Nagelsmann, whose sacking in March 2023 led to Tuchel's arrival, was tipped to return to Bayern, but has now extended his contract with Germany until 2026
Colombia scraped through the first phase, finishing in third position following a goalless draw with Peru.
Their placing sets up a last-eight meeting with Group B winners Argentina, to be played on Friday, and the star thinks that taking on one of the tournament favourites is a great opportunity.
"Everyone knows that they have good players, but Colombia intends to play," James said at a press conference on Monday.
"I never want to play bad but sometimes it's not how you want. Friday is a great match to try and make things better. We always want to win. There are still four more days to talk, but there are always things that can be improved."