Roma failed to qualify for Europe last season after finishing sixth in Serie A and they also lost the Coppa Italia final to arch-rivals Lazio to mean there is a need to overhaul their squad.
And ex-Lille manager Garcia wants to attract some star names, possibly from Ligue 1, as he seeks to return his new club to a powerful force in Europe.
"There are a lot of players that could attract me at Lille but also in France," he told media in a press conference.
"Roma sporting director Walter Sabatini knows the Italian market well. I know the French market. We will use our abilities to hire big players."