Product development teams often face the challenge of designing radically new products that cater at the same time to the revealed tastes and expectations of existing customers. In new product development projects, this tension guides critical choices about continuity or change concerning product attributes and team composition. Research suggests these choices interact, but it is not clear whether they are complements or substitutes and if the level of change in one should match or not the level of change in the other. In this article, we examine the interaction between product attribute change, team change, and a new team‐level factor, which we term stream concentration, as it captures differences among team members in terms of familiarity with the knowledge domain of the new product being developed. We measure stream concentration as team members’ prior NPD experience within a given set of products and assess its impacts on the management of change in new product development projects using longitudinal data from the music industry. We analyze 2621 new product development projects between 1962 and 2008 involving 34,265 distinct team members. Results show that stream concentration is a critical factor in new product development projects that, together with product attributes and team composition, affects new product performance. We discuss implications for research and practice.

中文翻译：

---

连续性，变化和新产品性能：物流浓缩的作用*

产品开发团队经常面临设计完全符合现有客户所揭示的品味和期望的新产品的挑战。在新产品开发项目中，这种张力指导着有关产品属性和团队组成的连续性或变更的关键选择。研究表明，这些选择是相互影响的，但尚不清楚它们是互补还是替代，一个选择的变化水平是否应与另一个选择的变化水平相匹配。在本文中，我们研究了产品属性变更，团队变更和新的团队级因素之间的相互作用，我们将其称为物流集中度，因为它捕获了团队成员在对所开发新产品的知识领域的熟悉程度方面的差异。我们根据团队成员在给定产品系列中先前的NPD经验来衡量物流的集中度，并使用来自音乐行业的纵向数据评估其对新产品开发项目变更管理的影响。我们分析了1962年至2008年之间的2621个新产品开发项目，涉及34,265个不同的团队成员。结果表明，物流集中度是新产品开发项目中的关键因素，与产品属性和团队组成一起会影响新产品性能。我们讨论对研究和实践的意义。