It's coming up to a year since Brady first took over at the Cobblers, initially appointed on an interim basis following Keith Curle's sacking.
Made permanent boss in the summer, Brady and his coaching staff then overhauled the squad before another busy month of transfer activity in January.
Six players came in, including Bez Lubala and Louis Appere on deadline day, and Brady is now as happy as he's ever been with the options at his disposal.
"I look around the squad at the moment and I feel it's the strongest squad we've had since I've been in charge," he said.
"We need to get a few of the new signings up to speed but once they are up to speed, I think the group will feel even stronger.
"That's a real positive for us going forward. I haven't had a load of selection options in that top line and in wide areas but now I feel we have options that can make a difference.
"Some of these players who have come in could help us, not just for this season, but maybe for the future as well, even though they're only loans. That was another careful consideration."
The addition of five attacking players should also provide a reminder to Brady's current squad that they are not automatic starters.
Brady added: "Those players you mention are more self-starters and are more motivated to do well for the team than anyone and they also give up a lot for the team.
"But I believe healthy competition and strong competition makes you better as well and I think that can only help and add to the group we already have here."