"We've taken steps to try and get more of the players playing outside Scotland back into Scotland," said Hadden.
"Chris Cusiter is coming back, and we hope to be able to add to that.
"It would not only enhance our two professional teams (Glasgow and Edinburgh), but give us an opportunity to continue preparing throughout the weekends instead of a significant number of our squad having to play club matches.
"We want to try and get more of our players back into Scotland.
"That is expensive, and we are not as well financially-resourced as some, but it is something we've got to try to do if we want to improve our quality of preparation.
"Obviously, we want to make the most of the potential of the good crop of players we've got at the moment.
"The introduction of professional rugby has not necessarily been kind to the countries with smaller resources, and we've had to fight really hard to keep touch with the big boys of world rugby.
"Certainly, it gives me a lot of pleasure that in some ways we've narrowed the gap.
"The important thing is to become more competitive in all the key areas of your game - scrummage, lineout, contact area, defence, kicking, line-breaking and quality of decision-making - and I am satisfied we have made progress.
"What we need to do now is make the scoreboard move a little more favourably.
"Sometimes it's not that easy in rugby. The ball bounces in strange ways, and against South Africa in November, for example, we probably didn't deserve to be 10-0 up at half-time.
"We played much better in the second half - and lost 14-10. It's just the nature of the beast when there are two well-matched sides hitting seven bells out of each other, there can only be one winner in the end."
Scotland can make an immediate statement of intent in this season's RBS 6 Nations Championship, with their opening game against reigning champions Wales on Sunday week.
The Wales clash is one of three in Edinburgh - but Hadden is also undeterred by trips to Paris and Twickenham.
And the relative success of Glasgow and Edinburgh in this season's Heineken Cup - they recorded notable victories over Toulouse and Castres in France - should underpin a solid Scottish campaign.
"Getting off to a fast start is obviously important in a competition of this nature," added Hadden.
"You need a bit of momentum, but I think the competition could be so tight this year that losing the first game might not make it insurmountable.
"The important thing is that we get ourselves in a position where we are in the mix on the last Saturday of the championship."