This week saw noteworthy staffing changes at some of the biggest firms in the tech industry, including Apple, Google (News - Alert) and Twitter. Let’s review the big moves this week.

First, Apple showed new signs of its impending smartwatch launch. The company hired Patrick Pruniaux to an unspecified position. As former head of sales for Tag Heuer, however, it is pretty clear what role Pruniaux will play at the company. Other smartwatch players need to be ready; Apple (News - Alert) seems finally on the verge of releasing its smartwatch offering. Read more about the move here.

While Apple gained a valuable new employee, Google lost one this week. But the departure of Eric Johnsen from the Google X team shows the confidence the company’s employees have with Google Glass; Johnson, who worked on Google Glass, left the company to joi APX Labs as their new vice president of business development, which Google Glass partner. Read more about the move in our report.

This week Interactive Intelligence Chief Marketing Officer, Joe Staples (News - Alert), also announced that he will be leaving the contact center solutions company for a senior marketing position in an unrelated industry.

Staples’ new position will be located in his home state of Utah, where he can spend more time with his family. Interactive Intelligence is seeking a new CMO effective immediately, as we reported in our article on the departure.

This week Interactive Intelligence also announced that it has hired Paul Crump, a former manager at Telstra, as its Australia / New Zealand Manager of Business Process Automation. In addition to Telstra, Crump also has worked for Nuance (News - Alert) and Genesys. Learn what this move will bring to Interactive Intelligence in our story on the hire.

Business communication firm, Mitel (News - Alert), just announced the appointment of Graham Bevington as its executive vice president of Europe, the Middle East and Africa (EMEA). The move is part of Mitel’s consolidation of its European sales organization under a singular structure, as we reported in our article on the move, and the company is expecting that the appointment will allow it to seriously expand its market share in those regions. Mitel connects both large and small businesses and their customers around the world. Bevington has 25 years of business communications experience.

Twitter filled the hole this week left by the departure of media chief Cloe Sladden last month. Katie Jacobs Stanton, who previously was Twitter’s vice president of international market development, will fill Sladden’s shoes. Stanton has a solid background for the role, and you can learn more in our story on the appointment.

This week Combast spinoff, SpinCo, announce that Matt Siegel has been appointed chief financial officer of the company. Previously, Siegel was senior vice president and treasurer of Time Warner Cable.

The SpinCo spinoff is part of a complex adjustment by Comcast to appease regulators, and you can learn more in our report.

Also this week, ServiceNow, a platform-as-a-service (PaaS) software company, purchased Neebula for $100 million. Neebula, an Israeli startup that specializes in software and system seeking technology for the business IT ecosystem, should help ServiceNow’s PaaS offering. Read more in our report.

That’s all the major comings and goings this week. Visit this space next week for more tech exec comings and goings.