What had been a fine defensive display from the Cottagers ended when substitute Fredi Kanoute curled homea free-kick with his first touch after 76 minutes, just four mintes after coming on for Jermain Defoe.
Robbie Keane, another substitute, wrapped it up with a one-on-one finish in the final seconds.
Fulham failed to trouble us all afternoon and Coleman insisted: "Our final pass was poor in attack. Nothing went right in the final third and that's disappointing because although Spurs score goals, they also let them in. We didn't bother them that much.
"I don't expect our final pass to be so poor given the quality we have in the team. The movement from the strikers was poor.
"We didn't play well today, but it wasn't as if Edwin (Van der Sar) was stopping shots in the top corner all afternoon."
Speaking of Van der Sar, Coleman said he was at fault for Kanoute's free-kick - he was rooted to the spot in the middle of his goal as the Mali striker curled into the far corner.
Coleman added: "Edwin is very disappointed that he did not deal with the goal. It's up to us to make sure he keeps his chin up - he's saved this team many times before.
"It was looking like a draw all game but when Kanoute scored we were chasing things. Edwin just mis-read the kick - he thinks he may have set the wall up wrong.
"It wasn't a bazooka shot from Kanoute and it wasn't a great free kick - just well placed into the corner. Edwin would usually have saved it."
Fulham boss Chris Coleman lamented his side's lack of quality and invention after our 2-0 win at the Lane.