Rangers manager Walter Smith admits they deserved to surrender their 100% Clydesdale Bank Premier League record to Inverness.
The Scottish champions were held to a 1-1 draw at Ibrox after Maurice Edu's opener was cancelled out by substitute Eric Odhiambo's 81st-minute effort.
Smith said: "We're disappointed. We started well but after the first 20 minutes, it was not one of our better performances."
He added: "We got a little bit casual and slack before half-time and that gave us something to say at half-time. It was the same in the second half and we eventually lost the goal.
"Of course we then showed a decent reaction but we didn't get one back. We have no complaints - we didn't deserve to take full points."
Rangers have been forced to contend with a gruelling fixture schedule as they battle to defend their title, remain in the domestic cups and challenge in the Champions League.
But Smith said: "I don't think tiredness was a factor. For a change, we scored first so maybe that was one aspect.
"I'm just disappointed. Credit to Inverness. In the second half, Allan McGregor had one great save to make and it should have been a warning for us but it wasn't."
Asked whether a busy schedule, combined with a small squad, means such results are to be expected this term, the Rangers boss replied: "I'm not so sure it's to be expected.
"We have a lot of games and it will be difficult. If you want to use that as an excuse on our behalf, fine. But I'd rather be involved in the Champions League."
Source: PA
