Slight injuries to a number of regular first teamers opened the door for Dean to join fellow youngsters Lee Barnard and Ronnie Henry in tasting first team action this pre-season.
Colin Calderwood informed Dean of his selection on Wednesday and it took the confirmation of the teamsheet to make it really sink in.
"It was brilliant - I enjoyed it," beamed Dean after the 1-0 win at the Fitness First Stadium. "I got told yesterday by Colin that I was starting and when I saw the teamsheet up I couldn't believe it. I was really pleased.
"It is a lot quicker, more physical, just better all round."
The third division team gave Spurs a tricky pre-season test, but distance and work prevented Dean's family from witnessing his big night.
"It was a tough game, they passed the ball around well and it was difficult. They had a lot of runners going forwards.
"I didn't manage to get any family here. I live in Canvey Island so it's a bit of a trek and my dad's got a lot of work on and couldn't get down."
Dean added that the quality of the players around him gave him the confidence not to be affected by nerves - although he does admit he should have scored in the opening stages.
"Nerves? Not really, because I'm playing with some of the best players in the Premier League and I knew they'd help me out, so nerves weren't really a problem.
"I did alright, I should have got a few more tackles in - but not too bad.
"I should have scored in the first five minutes but took my eye off the ball. I was disappointed straight after, but let it go after that.
"I've learned a lot. Just from the way the players around me are playing and I will learn things off them."
Dean Marney was given a day's notice to get used to the fact that he was going to make his first senior start against Bournemouth - and he described the experience as 'brilliant'.