The 25-year-old England international joined Atletico after being deemed surplus to requirements by Chelsea's then newly appointed head coach, Enzo Maresca. Since his arrival, Gallagher has gradually cemented his role within Simeone's system, showcasing his versatility and work ethic across various midfield responsibilities.
"Whenever we think of Conor, we think of his youth, energy, and intensity," Simeone said during a press conference ahead of Atletico's upcoming LaLiga fixture against Real Valladolid. "He strikes the ball well and has been able to adapt in positions that aren't always natural to him."
Gallagher has become a key figure in Atletico's pressing game and defensive organization. His ability to drop into the backline when required, combined with well-timed attacking runs into the opposition's box, has added a valuable dynamic to the squad.
"It's never easy for players coming from the Premier League to adjust to LaLiga - not just tactically, but also in terms of language and culture," Simeone noted. "Still, he has competed well in different roles. He has room to grow and evolve, but he already contributes greatly in both attack and defence."
However, Simeone was less positive when discussing the recent performances of Argentine full-back Nahuel Molina. While acknowledging the player's potential, he emphasized the need for improvement.
"He's a person first, and like all of us, sometimes he's at his best, and other times not," Simeone said. "He understands he needs to improve. We've spoken about it many times. When you've shown your quality, naturally more is expected of you."
Simeone praised Molina's attacking instincts and speed but stressed that consistency is required on both ends of the pitch. "He provides offensive options and has the pace to recover defensively. We have to support him so he can continue to offer what he's capable of."
Currently sitting third in LaLiga, Atleti trail league leaders Barcelona by ten points. The Catalan side also eliminated them from the Copa del Rey semi-finals earlier this year. With their Champions League campaign also having ended at the hands of Real Madrid, Simeone's side now has fewer fixtures but more recovery time.
Despite this, the Argentine coach admitted that a lighter schedule has left him feeling uneasy.
"It's not always simple to train every day without matches," he remarked. "Personally, I prefer a fuller calendar-it means we're fighting on more fronts."
Nevertheless, Simeone reiterated his commitment to keeping Atletico competitive in the title race: "We remain full of enthusiasm and ambition, and we'll continue to fight until the end of the season."