I love Yuji Ohno, but I feel like the most recent soundtracks have gotten 'too jazzy,' I miss the red jacket series' funky sounds.
I completely agree with you, because that is what I have been thinking about his Lupin III OSTs since last few years.
I really miss the funk in his music. I love that he incorporates jazz in Lupin III OST, but now it's too jazz only without the funk, as you said.
I think his last funky Lupin III OST was the OST for 2004 TV Special "Stolen Lupin".
After that, his OSTs have been mostly jazz only or variations of many old themes.
Nowadays, only occasionally, he produced some really cool tracks, like the Memory of Smile(Green vs Red version).