Detailed Explanation:
An output specification defines the desired outcome or result of the procurement rather than specifying how the result should be achieved. A requirements brief outlines the goals, leaving flexibility for the supplier to propose solutions. Reference: CIPS Level 4, Output Specifications in Procurement.

Writing a specification and then procuring and using the product or service has a number of stages. The further on in the process you are, the less potential there is for cost reductions. Therefore, opportunities for cost reduction will be greatest in the two first stages: planning stage and pre-design stage.
LO 3, AC 3.1

Marketing plays a critical role in sales. The marketing department introduces products to the con-sumer, and creates strategic messaging that elevates appeal and ultimately drives sales. The feed-back and response from consumers is measured by the marketing team on a variety of levels. Ad-vertising is one means of seeing what performs and what does not perform. Marketers will note trends and demand in their specific markets. This plays into new product development, because the marketing team can work with product developers to create products based on that demand.
In development of specification, the role of marketing is largely the same. They provide the market insight so that right specification is developed and it matches the demands from customers.
Reference:
- CIPS study guide page 173-175
- Role of Marketing Management in New Product Development (chron.com)
LO 3, AC 3.4

According to Kraljic portfolio matrix, the low-value items with high supply risk are bottleneck items.

The purchasing strategy that is commonly recommended for these products is primarily based on acceptance of the dependence and reduction of the negative effects of the unfavourable position. An alternative strategy suggested by purchasing practitioners is to find other suppliers and move towards the non-critical quadrant.
- Accept dependence, reduce negative consequences: The main focus of this strategy is to assure supply, if necessary even at additional cost. Examples of this strategy are keeping extra stocks of the materials concerned or developing consigned stock agreements with suppliers. By performing a risk analysis firms can identify the most important bottleneck products and consider the implications. A possible action for dealing with unexpected bad dependence positions for certain products is to employ contingency planning.
- Reduce dependence and risk, find other solutions: This strategy is geared towards reducing the dependence on the supplier. The most common way to achieve this is to broaden the specifications of the product or to search for new suppliers.
The procurement team in the scenario has selected reducing dependency by finding alternatives. This is a right strategy for bottleneck item.
Reference:
- CIPS study guide page 82-84
- Purchasing strategies in the Kraljic matrix-A power and dependence perspective, Marjolein C.J. Caniels, Cees J. Gelderman LO 2, AC 2.1