Final answer:
The speaker responsible for data consolidation for better decision-making is probably Mr. Swift from TeraData, a company specializing in data warehousing and analytics.
Step-by-step explanation:
The main job of the guest speaker from the presentation who is responsible for consolidating data for an enterprise to enhance decision-making is likely to be Mr. Swift from TeraData. Teradata is known for its data warehousing and analytics solutions, which align with the responsibilities of consolidating data to improve decision speed and reliability. This role involves large-scale data management and the implementation of robust analytics platforms to aid in strategic business decisions.