In early 1988 Beefcake is still feuding with Johnny V. and Valentine. Nearly a year after the Dream Team broke up. Beefcake's first year as a babyface was pretty underwhelming.
Also in early 88 you have Spivey, Sika, Bundy, Bees still around. Orndorf just left. Amazing the roster overhaul throughout that year.
Beefer spent months working Johnny V around the horn. Valentine was annoyed with the Bravo team just running in place and threatened to jump to JCP in late 87, so he was branched off to work Beefcake to finally blow off that angle. Who knows if that affected Valentine getting a W at WM 4? He then got the big heat angle by crippling Superstar Graham to set up a Muraco run.
One of the old WM rewatch threads (Last year?) I listed all the name talent left off the card each year.
Spivey is an odd one. He came in as a raw, somewhat older prospect and replaced Windham in late 85. Then Rotunda quit, went to the AWA for a few months (long enough to miss a Mania payday but work Wrestlerock) and then came back to the WWF and Spivey for another run. (Spivey and Mike actually are part of the good guy squad that save Hogan in July after Orndorff turns heel and drops him with a couple of piledrivers).
Mike went back to Florida in early 87 and Spivey somehow turned heel. If you didn't watch Prime Time Wrestling, you may never have seen him.
Sika got screwed a little bit as Kamala quit over being asked to job to Hogan on SNME (Sika replaced him). Sika actually got a couple of SNME matches, so the Vince/Samoan love was shining through. \
IIRC Bundy quit due to movie opportunities (Richard Pryor's Moving) and Vince being mad about Bundy getting the CPU ad gig.
The Bees were definitely promised a push time and time again, but kept on that Hamster Wheel. Their SSeries win was likely to placate them after Strike Force beat the Harts in Oct and not them.
If Orndorff's arm didn't get messed up, we probably were heading for Paul/Rude at WM. Jake's angle with Rude was not done until AFTER Mania, which surprised me to realize a couple of WM threads ago.