The reason for the success of Salman Khan's previous films – Dabangg, Ready, Wanted and Bodyguard is said to be the creative inputs from the actor himself.
Director Kabir Khan is known to work on extremely tight script. In one of the sequence in Ek Tha Tiger, Salman Khan was supposed to chase a group of villains and beat them up. However, when Salman was narrated the scene, he reportedly told Kabir that the scene would have to change since his fans would not like to see him chasing the bad guys. Instead, Salman Khan suggested that the villains should come after him and he should then thrash them up!
If sources are to be believed, Kabir Khan was so tired of trying to explain to the actor that he finally gave up. The scene was later rewritten and the scene came out perfectly well.