Appointed by new owner Genii Capital for 2010, Frenchman Boullier led the team this year but Group Lotus' high profile CEO Dany Bahar has been conspicuous since the takeover announcement this week.
Bahar is also experienced in F1 after roles with Red Bull and Ferrari, but he told F1's official website: "Given their (Renault's) performance this year, the structure really works so we have no plans whatsoever to change this."
With the French carmaker Renault SA now completely bought out, Bahar refused to comment upon which percentage of the team is now owned by Genii and Group Lotus.
"Whether it is 40, 50 or 60 per cent is something that does not really matter," he insisted. "What matters is that it is a real partnership with clearly defined roles and responsibilities."
Group Lotus owner Proton's chairman Datuk Seri Mohd Nadzmi Mohd Salleh revealed on Friday: "Its (Lotus') spending on F1 will come from a portion of its marketing budget of between 15 and 20 million per annum."