On May 4th, 1971 the prime crew of Soyuz 11 was confirmed to be Leonov, Commander; Kubusov, Flight Engineer; and Kolodin, Research Engineer. Their assignment was to spend between 30 and 45 days on board Salyut 1.
… There was no provision for the possibility of undocking if the entire docking cycle had not been executed …
“They can’t approach at that rate,” fretted Mishin. “Why aren’t you doing anything? Tell the crew what to do!” “We don’t need to do anything; deceleration will begin now,” Rauschenbach reassured Mishin.
The original Soyuz 9 mission was planned to fly two Soyuz spacecraft in the August to September 1970 time frame for a rendezvous and docking; however, at the end of December 1969 the communist party bosses ordered that the mission be changed to a single spacecraft on a 20 day long duration flight to be launched in April 1970 to coincide with Lenin’s birthday.