60.Section 14 relates to delegation generally and section 15 imposes special restrictions in relation to the delegation of asset management functions.   Trustees who fail to comply with these requirements will be liable for breach of trust.  The general rule in relation to delegation under section 11 is that trustees will be free to decide the terms of the appointment of the agent (section 14(1)). The basis upon which the agency will have effect will be governed by the general law of agency.  This freedom is however subject to various restraints.  First, the exercise of the power to delegate under section 11 or the trust instrument will be subject to the duty of care (section 1 and Schedule 1 paragraph 3(1)(a) and (d)).  Second, there are some specific restrictions: trustees may not delegate on terms which permit the agent to appoint a substitute; which restrict the liability of the agent or his substitute to the trustees or any beneficiary; or which permit the agent to act where a conflict of interest may arise.  However, these restrictions will not apply if it is reasonably necessary to delegate on such terms (section 14(2)).  Third, in the case of asset management functions and remuneration, the provisions of sections 15(2) and 29 to 32 respectively apply. The restraints in the first and third categories of restriction are described in relation to the relevant sections.
61.The second is a pragmatic response to the realities of modern fund management which nonetheless ensures that adequate protection is given to beneficiaries by imposing a test of reasonable necessity on the trustees.  Under the present law, subject to an exception for property abroad under section 23(2) of the Trustee Act 1925, trustees may only allow sub-delegation by their agent if authorised to do so under the trust instrument.  This is no longer appropriate in modern conditions where the appointment of a fund manager will often be essential to the efficient and effective management of the assets of the trust.  Section 14(3)(a) flows from this. As the standard terms of business of fund managers generally require limits on liability and the ability to act despite a conflict of interest, the ability to appoint a manager would amount to little in practice if trustees were unable to accept such terms (see section 14(3)(b) and (c)).
Commentary on Sections Part IV: Agents, Nominees and Custodians Section 14: Terms of agency