The Saddlers chief wielded the axe by offering just two out-of-contract players new deals in Liam Kinsella and Nicky Devlin while letting several first-teamers go.
The likes of goalkeeper Liam Roberts, midfielder George Dobson and top scorer Andy Cook were already contracted, and on the players on the books, Clarke said: "You can find every bit of detail you want in the football world now with the scouting tools that are out there.
"I have watched a lot of Walsall games. I have done my homework as such, and now we’ll get cracking.
"Yes, it’s going to be a tough rebuild, but it’s a rebuild that can be done working within what we work with."
Stuart Sinclair arrived as the first new signing of the summer last week from Bristol Rovers – Clarke's former club.
Clarke also did his due diligence on the Saddlers as a whole, speaking to old boss Dean Smith and the outgoing John Ward.
"I was assistant manager to John (at Rovers). John brought me in. He is a great guy and has got plenty of experience in the game – I know John very well," said Clarke.
"I had a couple of chats with John and a couple of chats with Dean who I get on with and who knows the club very well.
"You do your due diligence. If you are an out-of-work manager, you speak to people who you need to speak to about the club and there is a really good feel about this place."