I don't think there was anything "shoddy" about the way Schram's departure was handled on the part of the producers. She basically pulled a MacLean Stevenson - holding the show up for more than it was willing or able to pay on the theory that she couldn't be replaced. She was wrong and she paid the price. If there was any "shoddy" behavior there I think it was in her breaking her contract and leaving the rest of the team in the lurch. She's lucky the character wasn't just killed off-screen, which would have forever prevented her return. Given the timing and the pressure to both continue producing the show and establish a new sidekick, I think they did as good as job as they could with what had to be a short and easy-to-grasp explanation in the dialogue. And I think it was gracious of both parties to bury the hatchet for the good of the show and the benefit of the fans and agree to having her return.
Her "Special Guest Star" billing is pretty standard in these situations, and is what her agent negotiated for her.
Quote:
I was worried Sharona would be contorted to fit the needs of the plot in the way that Natalie increasingly is...
... [Sharona's] so much more of a personality than Natalie that I think it's much easier to figure out what fits and what does.
So, you can't figure out what fits and doesn't for Natalie, because she is less of a personality, but you
can simultaneously declare that what little personality she has has been distorted to fit the plot.

Maybe you just don't understand or appreciate Natalie's personality, which is a good deal subtler than Sharona's?
Nor do I think it would have made any sense to get into guilt or resentment with Monk and Sharona. While this episode is very much a gift to long-time fans of the show, it still had to be written so that someone who had never seen a frame of Monk would be able to tune in and follow the story. They couldn't stop the story dead to explain the circumstances of Sharona's departure, which is the only way the ending you envisioned would have worked. Especially not when you only have 40-some minutes of story time.
The same objection applies to having Benjy and/or Julie in the episode - you'd have to divert valuable screen time away from the plot to basically name-check a couple of characters who don't contribute to the story, and you have to pay two more guest star salaries to do it. The picture of Benjy accomplished most of what an appearance would have done and was a lot cheaper. (Ditto when Sharona and Benjy were mentioned during Monk's memorial service in "Mr. Monk is on the Run".)
The reason Sharona won't be around when Monk solves Trudy's murder is basically the same. She'd be an expensive guest star unimportant to the plot, and valuable screen time would have to be devoted to reintroducing her to new viewers. It made far more sense to deal with the character by giving her her own episode. (And who knows? Maybe Schramm did film a brief scene or one side of a telephone call to be used in the finale. Before Michael O'Hare left
Babylon 5 at the end of the first season, he recorded a couple of video-emails as Cmdr. Jeffery Sinclair that would be seen in season two as a way to keep his character alive and a part of the story before his final appearance in the third season. OTOH the producers couldn't justify flying O'Hare in from New York and paying his expenses and salary to shoot one scene for the TV movie
In the Beginning because it wasn't that central to the plot, and the Sinclair material that was already existed in the form of clips from various episodes. So it all depends on budgets and what everybody wants to do.)
The Trudy story is and always has been more about Monk and Stottlemeyer, who knew Trudy, than about anyone who came into Monk's orbit later. Natalie will be with Monk because she is his assistant now.
All-in-all I thought they did a very nice job with the episode. They
didn't do what I feared, which was make Natalie and Sharona best buds from the beginning. I liked the resentment and the competition and the "Mr. Monk" vs. "Adrien" bits. But I also liked the ending, which was more about the actors and the characters and their place in the show than about the characters as people in a fictional universe. That part really was a nod to the fans, and if anything I think they overstated Sharona's contribution to Monk's progress, probably as a way of placating the kind of die-hard Sharona fans who are still sending them hate mail. (One of whom, I hasten to add, Adam is clearly not.

)
Regards,
Joe