As touring continued, Blood, Sweat and Tears begin gathering material for yet another album and in the spring of 1973 they are once again in the studio to record. The result "No Sweat" was released in June the same year and contained both originals and cover songs. The album this time is more rocking with "Roller Coaster" released as a single. The LP scores at #42 and another single, "Save Our Ship" is released from the album. The touring continues and so are the personal changes within the band. Longtimer Jim Fielder leaves and is replaced by Ron McClure, Lou Marini JR is replaced by Bill Tillman. Tom Malone leaves and Tony Klatka takes over. Lew Soloff also leaves the band. Jerry LaCroix, formerly a member of the Edgar Winter group, joins the band on sax and flute. He also sings, but Jerry Fisher is still the lead singer.
In March and April 1974 the band spend most of the time in the studio for their forthcoming album and in July, "Mirror Image" is released. A song called,"Tell Me That I'm Wrong" is released as a single but only reaches #83. The album flops at #149. Jerry LaCroix didn't feel comfortable within the band, and he couldn't' handle Bobby Colomby. Basically he didn't care for Blood, Sweat and Tears style and he did not like to share lead vocal duties. He was more interested in his solo album "The Second Coming", that he recently had recorded. He once said that one of the reasons for him to join was that they ware going on a world tour and he hadn't seen the world. While they were in Australia he decided to quit. When they came back, he left the group after a gig in Central Park. Luther Kent, a blues singer from New Orleans was recruited as a new leadsinger, together with Jerry Fisher. Luther Kent had been singing with The Greek Fountains, a busy, popular band in demand regionally, then criss-crossed America with his own, 9-piece r&b band, "Blues, Inc". His voice could be described as powerful, rough and whiskey-drenched. Blood, Sweat and Tears never did any recordings with Luther Kent, who eventually quit to form "Trick Bag" with guitarist Charlie Brent.
As 1975 began, David Clayton-Thomas returned to Blood, Sweat and Tears. Joe Giorgianni was added on trumpet, flugelhorn and in sessions during February, they recorded new songs for an album. 50 percent cover tunes (Janis Ian, Randy Newman, the Beatles, Blues Image) and 50 percent originals, including a song from one of Clayton-Thomas solo albums ("Yesterday's Music"). The L.P. called "New City" is released in April, and on the cover it says "Blood, Sweat & Tears featuring David Clayton-Thomas", to let people know that now it's the same band that made all those hits a few years ago. It's the first BS&T album in many years to get favourable reviews. Live bookings began to increase in quality and quantity, and the band experienced renewed popularity. Their revival of the Beatles "Got To Get You Into My Life" peaked at US #62, and the album hit #47. During this period, a live album was recorded and released in Europe and Japan as "In Concert". It's the same album that later was released as "Live and Improvised" in the U.S.A.
In August 1976, an album called "More Than Ever" was released, but it was a disappointing seller. This was the weakest album they ever have put out, despite guest vocals by Patti Austin. It stalls at #165 and Columbia Records dropped the band. At this time, Bobby Colomby, B,S&T's sole remaining original member calls it a day.