Another example of something struggling even to get off the ground at all: the 1972 revival of DR. STRANGE (also in MARVEL PREMIERE):

3 -- Barry Smith w/ Stan Lee / Frank Brunner
4 -- Thomas & Goodwin / Barry Smith / Frank Brunner
5 -- Gardner Fox / Irv Wesley / Don Perlin
6 -- Gardner Fox / Frank Brunner / Sal Buscema
7 -- Gardner Fox / Craig Russell / Esposito, Giacoia & Hunt
8 -- Gardner Fox / Jim Starlin / Giacoia & Hunt
9 -- Steve Englehart / Frank Brunner / Ernie Chan

ABSURD, isn't it? It took until the 8th episode before they finally found a "proper" creative team who A)knew what they were doing and B)stuck around. And Frank Brunner only did 9 episodes (blowing deadlines TWICE during that time-- both times caused by the editor suddenly insisting on an "extra" issue shoved into the schedule for the summer season) before he got "bored" and went off to do HOWARD THE DUCK-- which he got "bored" with after only 3 episodes! At least Steve stuck around for the long haul-- until Gerry Conway got in his way to the point where he dropped ALL his Marvel books and went to DC for a year. (Conway may be a nice guy, and have done some decent work over the years, but he still has a LOT to answer for!)