Final answer:
Without additional context from the scenario, it's not possible to accurately pinpoint the key limitation in Network Funtime Company's current IT infrastructure. Four general IT infrastructure limitations are identified, which could potentially impact a company's operation if present.
Step-by-step explanation:
The key limitation in Network Funtime Company's current IT infrastructure, as described in the scenario, is not explicitly mentioned in the provided context. However, in general, a limitation such as a lack of cloud services utilization could severely limit scalability and flexibility, an inadequate laptop procurement process might lead to inefficiencies and insufficient resources, an overreliance on HR for system setup could lead to potential bottlenecks and inefficiency, and strict password requirements for employees could possibly cause frustration and decreased productivity due to frequent password resets or lockouts.