The Nerazzurri president warns that the club will have to sell before they buy in the January transfer window but insists that they are exploring options to strengthen the side
The Nerazzurri currently sit sixth in Serie A and have lost their last two games, against Lazio and Udinese, following the winter break.
Despite their dip in form, Thohir - who completed his takeover at the club towards the end of 2013 - has indicated that Inter will need to sell players before they are in a position to add to the squad.
He told Indonesian media: "We do not want to do as other clubs, who proclaim purchases and do not conclude [them]. Before we buy, we have to sell.
"In January we will have to review the team. There are roles where we have many players and others in which there are not. We are looking for players at positions that are lacking."
Inter crashed out of the Coppa Italia on Thursday, losing 1-0 to Udinese, after being defeated by the same scoreline by Lazio in Serie A just three days previously, but Thohir is not worried by the situation at the start of his regime.
"The project is very clear, there is no doubt about this," he added. "We want to build a healthy, competitive and interesting club.
"This is a year of transition. It is the year zero, it is the last year of a fantastic era.
"The market consists of a series of opportunities. The fans may not expect bombs but, if we have the chance, we will make something interesting."