Former West Ham United boss Alan Curbishley says Mauricio Pochettino must demand control of transfers at Tottenham.
Spurs have lost four times in their last six games.
"When you're a manager going into Tottenham, you have got to understand what the rules are, what the brief is," he told Sky Sports News HQ.
"If it's that Daniel Levy and Baldini are going to bring the players in, you go in under that situation. I think that's creeping into the Premier League.
"The foreign manager seems to accept that is the way it is. We've seen it over Europe; it has not quite taken off in the Premier League.
"I think the sporting director is a situation where the manager must have a big input on the players coming into the club, because invariably the manager is the one that cops it and the sporting director stays there."
